Princess of Desolation

by Silver W. King

When you are reborn into a world as crazy as High School DxD, there aren't a lot of options on what you can do. Run and hide. Go with the flow and hope you survive. Or you take this setting, bend it over and fuck it. Because when the potential of ultimate power is in your grasp why wouldn't you take it. [Self Insert-Rias Gremory] [RiasXHarem] [More than likely to contain Smut]

It was a dark and stormy night upon the ancestral home of the Leviathan Clan. It always was. For it's the True Leviathan homeland, the Isle of Melaketos.

At least according to Katerea Leviathan, and obviously anyone from the True Satan Faction, politely-forcefully-called the Old Satan Faction in modern times.

It's why it was always raining on the island. Although calling it an island was a misnomer as it was the size of the Human World's Australia. The rain did serve a purpose, it's suppose to alert the Head of the Leviathan Clan of a threat to their ancestral home, and act as a defense system as well.

It was also suppose to be active only during wartimes.

For the past 500 years, and even long after the Devil Civil War had ended, the rain didn't stop. Close to three quarters of the Leviathan Clans treasury was constantly being fed to maintaining the territory defense system.

A subtle snub to the current Underworld governing body that while complying, the True Leviathan was not bowing to their false authority.

Katerea always slept with a smile know that even the False Satans, hadn't dared met or confront her on her ancestroal home.

Yet, her current mood was not a happy one as she ripped apart a letter with her magic aura.

"Amon, those filthy coward!" Katerea slammed her hand down on the desk of her personal office.

The wood held, a testament to the quality and craftsmanship it was made with. This one was lasting through three years now, withstanding her rants of righteous anger.

"'Demilitarize our forces to truly enter the era of peace among Devilkind'? What kind of worthless warrior clan is that!?" Katerea spat out. She raged at how the Amons were now, no longer part of the military, and thus away from the important decision making in the current government.

They might as well be saying they don't believe in our Faction anymore, and would rather listen to the False Satans, with how blatant this is! Katerea scowled at the thought.

Another once-upon-a-time ally, had given up their quest, the True Satan Faction's quest, to regain their former power, deciding to tuck their tails between their legs, and kowtow to the current regime.

After their regrettable loss from the Devil Civil War, the Original Satan Houses had lost a lot of power. Demonic, financial, political. All of their lands were taken by the winners like vulture, leaving nothing but the ancestral lands the True Satan descendants all originally inherited.

For hundreds of decade Katerea had been working to restore the great might they once held. It was an uphill battle, as no one wanted to be associated with the "warmongers".

A foolish thought. Did everyone think the other Factions, Angels and Fallen alike, would just sit on their laurels and do nothing?

The Great War would happen, one way or another. They had to be in the best position to fight it.

And yet many of their kind were tired, they simply wanted to be done with fighting. With losing more of their population, that their race was in actual danger of extinction, had things The War gone on forever.

Yet isn't it better to go with a blast of glory? Either rule the world or leave your mark upon it!

Katerea used to believe that, and to some extent she still does.

Are Creuserey and Shalba right? Should we accept working with those Khaos Brigade? It would give us a solid base, but will it be enough to slice the False Satans in one full swoop?

She understood the wariness of war, but she also knew that as long as Heaven and the Grigori stood, Devilkind will never truly know peace. They will never be safe.

Her father learned that. He learned it when he was slayed by a Fallen, when the Three Factions where supposed to be in a "ceasefire".

What a joke.

Katerea sat back down in her comfortable chair, and let her mind wander, as the rain's weak pattering calmed her nerves.

Then there were the Reincarnated Devils.

Unlike her comrade of the other Original Satan Clans, she didn't' really mind them. She understood the necessity. Katerea just simply hated being indebt to Ajuka or any of the False Satans.

She also hated what they represented.

Change.

Of ideas, believes, customs, lifestyles and even structures.

And in turn many of the tradition Devilkind once held were being eroded.

The False Satans made a fricking moon to appease the Former Human's frail psyches.

Would you even recognize the world if you were to wake up, Ingvild?

And with that Katerea's mood soured even further. Not even the sound of the rain could...

Why is the rain weaker?

Rage crawled up from her chest as she stood up.

"Who fucking dared to turn off the isle's defense?" Katerea gritted her teeth as she looked at the massive window behind her, framing the office, only to blink in confusion.

The rain was still present. However there was a hole in the clouds. A hole that was slowly moving toward her castle, and thus the rain was growing weak due to it. Across the whole isle the rain still went strong.

"Lady Leviathan!" Marcury, one of family's many servants burst into the room, behind him were a group of servants just as gibbered.

Marcury was an old hand, that serviced her family for generation. It's why she didn't attack him for such disrespectful act. The panic on his face, showed his reason was probably valid.

"What?" Katerea snapped back.

"I-It's..." He took a moment to breath. "It's her! It's Rias Gremory!"

The fire in her chest turned cold. It wasn't because she was afraid. Katerea was still angry, but she needed to act calmly here.

"So the False Satans finally dare to send someone into our lands, and it's a little girl."

At her brave words Marcury and the other servants grew calm, and awe lit up in their eyes at her reply.

As is right of course. Katerea smiled and walked forward, confidence radiating from her, as normal for a leader, for one of her status.

"Go back to your roles." Katerea order, as the servants, and guards went back to their posts. "Now, let's see what the 'Princess of Desolation' wants." The Head of the True Leviathan Clan sneered at that title. "Who did she bring with her? What's the size of her army that she's trying to intimidate us with?"

The Gremory child had call ahead about wanting a meeting with the True Leviathan Heir. Katerea however had dismissed it as some child's ignorance. There was protocol to be follow. A Devil of a different clan does not enter someone's territory until they are given approval by the owners first.

It was a basic concept that even a child should understand.

Apparently not Sirzechs pampered princess. Katerea scowled. She wondered what possible idiotic thought came to that child's mind for her to come to Katerea's territory. No matter, regardless of whose with her, if she tried any intimidating or aggressive actions, she would be the one at fault, and I could use that against her and her brother.

"It's only her." Marcury answered her.

Katerea stopped in her path.

"What?" She turned to the flinching Marcury and said pointedly.

"S-She came alone, my Lady."

Katere gritted her teeth and went on her way with her servant following behind her.

Arrogant child.

---

Rias Gremory was standing aloof in the main hall that was lined up with arts and portraits of great and notable Leviathans of the past. Her black business suit and tie, along with the shirt as red as her hair seemed in contrast to the purple and violent color decorating the interiors of the castle.

The Gremory scion was standing at the portrait of Katerea Leviathan herself, with her back to it staring at the view of the castle town outside, along with the surrounding nature view and weather.

Beside Rias was another servant, one who Katerea didn't bother to remember the name of. One of the commoners in her lands. From the tray he held and the champagne glass in Rias's gloved hand, Katerea deduced he was the wine server. She faintly recalled that he was enthusiastic about working the castle. Eager to serve as one of her subjects should be.

"Lady Gremory," Katerea smiled and spoke with an amicable smooth tone. "What a surprise to have you in our grand home. We couldn't even prepare a...proper welcome." Katerea stood close to the child with her chest held high, regardless of the power she could feel from Rias-which Katerea supposed was admirable for her age, as is right for a Pure Devil.

"Thank you, Lady Katerea Leviathan." Rias said back, her voice holding a relaxed sultry quality to it, that Katerea supposed was something to appreciate if she is forced to hold a conversation with this child. "However, I made sure to call ahead."

It's only when Rias turned to face her, that Katerea noticed the cigarette in Rias's mouth. One that oddly enough doesn't let out smoke, but had a burning glow at the tip.

Power of Destruction. Katerea noted. A threat or a show of power? That she can control her birthright gift to such an extent without exerting any effort. Katerea supposed she could respect the image Rias Gremory was presenting, if nothing else.

"I suppose for one as young as you, you may not had the training yet, but for one of the Satan Houses, you wait for their invitation to accept you. I suppose I can forgive a small mistake like that this time." Katerea smirked at putting the Gremory child in her place.

"Ah, I see. My bad. Thank you for your kindness." Rias said back nonchalantly.

A twitch came to Katerea's eye that she instantly put down to maintain her calm image.

'My...bad'? Does this child not realize who she's dealing with?

Then a loud stomach growl then echoed in the hallway. Katerea raised an eyebrow as she looked from Rias's stomach to her bored face.

"So should we have our meeting during lunch?" Rias asked without care. Or shame.

...This brazen brat. Katerea couldn't quite stop her eye from twitching this time. Is she here to fucking mooch off of me? This isn't your damned restaurant, you little shit!

"I see. As I said, we weren't quite expecting you, so we don't have a meal prepared for...one such as you." Katerea said, the implied insult so obvious she might as well have slapped Rias. "Of course, we can wait in my study in my study while my servants prepare something hastily. For your sake, as I'm sure it had been a long trip for you."

After all, one can't teleport onto the island. Something nagged at the back of Katerea's mind.

Rias didn't even seem to have noticed the insult, if her slight smile at the mention of food was any indication. Katerea anger and caution-not fear-was beginning to fade, and in it's place was annoyance.

Without waiting for a reply half turned to walk away, to force the Gremory brat to run after her to catch up.

"One thing I would like to mention, your ladyship." Rias said as she place the champagne glass back on the wine server's tray. The glass only had one sip taken from it. "Your server tried to poison me." She said casually as she walked toward Katerea has in her pocket.

Tension swiped up into the room like a sudden rising tide.

"My child, if alcohol isn't to your taste," Katerea smirked at the baseless accusation. It's likely that the wine server had done this on his own. Katerea would have to reward him, once Rias Gremory was made vulnerable to her machinations, and at her mercy. Not that the child wasn't already for foolishly coming to her territory, the True Satan as oppose to her False Satan brother, all alone. "There is no need to lie and throw a tantrum about it-"

"It's rat poison." Rias said back.

"Excuse me?" Katerea thought the rude brat really was throwing some childish tantrum, and was trying some sort of pitiful power play, rather than actually being poisoned. The smirk on the wine server however suggested otherwise.

"It's Human World, mundane, rat poison." Rias clarified.

Katerea blinked at that. She slowly turned to the server to see him foolishly, eagerly giving a single nod that he likely though was subtle.

She shot him with a magic blast killing him on the spot.

"I am...terribly sorry for that, Lady Gremory." Katerea said with a hand on her chest, and gave a slight bow while pushing down her embarrassment. A slight flush could still be seen on her face. "He was a..." She couldn't say 'retard', 'idiot', or 'incompetent' as her staff hired him and thus would look badly on her. "A very foolish opportunists."

"Yes, well..."Rias took a moment to try and think something before looking away. "I don't really mind but the taste was atrocious."

HE DIDN'T EVEN FILTER THE TASTE, THAT FUCKING PIECE OF SHIT!

"He was a stupid, incompetent retard, hired as a charity case." Katerea all but deadpanned.

"Your magnanimity is boundless." Rias nodded solemnly.

"A feast will be prepared posthaste with the best quality the Leviathan Clan has to offer." Katerea said before straightening up and giving a sharp look to Marcury.

Her loyal servant gave a sharp nod in turn and headed on his way. A mutter of "Dammit, Fred" said under his breath.

"And your hospitality is sumptuous!" The Gremory child said, brightening up at the news.

Katerea nodded and headed with Rias to the dining room.

After all, they were the Leviathan Clan, they were Devil royalty, and they sure as heaven wouldn't use FUCKING HUMAN RAT POISON to kill their enemies. They had class goddammit!

They would use the best ingredient within their lands. After all, they True Leviathans aren't cheap nor want for money!

---

"Please send my compliments to the chef, Lady Katerea. The Markupo vapour steamed into the steak was practically undetectable. In fact, I would say this is the best cretan meat I'm ever had." Rias praised Katerea and her household as she raised a glass of pure Basilisk venom (Rias's request), before casually drinking from it and continuing her meal.

"Thank you. I'm sure he'd appreciate it." Katerea said dryly through gritted teeth as took in the Gremory child's taunting of her.

When they had went to the dining area, Katerea took the time to ask Rias why she came, and it seemed the child had some delusions about some compromise that she, as a scion of the Gremory, could reach with the True Satan Faction, or rather Katerea and the Leviathan Clan specifically, so that as to begin to mend relationship between the the True Satan Faction and the New Satan Faction, so that Devilkind as a whole would be more unified, rather than fragmented. (Even if Katerea in the very back of her mind acknowledge that her faction was increasingly become an even smaller minority.)

They didn't talk about anything specific, just talking about frivolous nothing, but mostly Katerea used the time to get the measure of Rias Gremory. All that she could tell was that the child seemed uninterested most of the time. It seemed to be her natural state.

The exception was obviously when Rias focused on Katerea herself, there was a glint of interest in her eyes when she did. It was something the True Leviathan accepted with causal pride. Obviously the child had never seen a True Satan before, so it's only natural that she would be interested in Katerea.

Katerea even entertained the thought of seducing the Gremory scion to her side. She could admit that the business look Rias sported did highlight her supple figure well, and that tie looked like a good leash to tug the Gremory girl by. What a blow that would be to Sirzechs, taking his little princess away.

Then the food arrived and Katerea had to reevaluate her assessment of the Princess of Desolation.

Rias was eating slowly, her dining etiquette leagues better than her manner in interacting with Clan Heads. Then Katerea's servants got to work.

At first it started with some sleeping potions, but that didn't work. Then some paralysis poisons, and nothing changed.

Then some outright lethal poisons. Nothing worked. The more nonchalant Rias acted at being unaffected, the more the attempt to knock her out escalated, till it became abundantly clear that trying to use a stealthy method of subduing against Rias plainly doesn't work.

Now Rias had requested a bowl of Hydra poison to freely pour on her chicken pine and rice, because it gives it a "spicy kick". She was drinking poisons by the glass full because it has a sweet taste.

Katerea began recalling and reviewing what she knew about the Princess of Desolation.

Years ago, Katerea only knew about Rias Gremory in the abstract. She was Sirzech's little sister, and was given the usual labels of "prodigy", "once a millennia child", "the second coming of a Super Devil like Lord Lucifer" and so on and so forth, all because Rias manifested the Power of Destruction at birth or something equally ridiculous. That was likely just an exaggeration.

The only solid piece of information that anyone had about Rias, one that was consistent enough to be true, was that the girl was obsessed with training. Anyone who had met her in the Gremory home or outside of it, would mention that she was constantly exercising with her demonic power, and constantly trying to grow stronger. Katerea didn't see any evidence of that here, but that's likely due to the girl having enough common sense, to not rudely use her demonic power in the presence of the True Leviathan, in Katerea's home.

Ignoring that she likely did so to arrive here.

At the thought, Katerea realized what was nagging her about Rias since her arrival.

Her clothes were dry. There wasn't so much as a drop of water anywhere on her.

The Isle of Melaketos didn't just have the rain defense system. As a natural consequence of maintaining the rain defense system for centuries the weather and water around the island had transformed into a much more violent environment. The weather around the island was one of constant water twisters and thunderstorms. There was a hurricane wind dome covering the isle with such ferocity that it can't even be pierced from the top. The sea creatures left in the waters around the island were only the strongest, most vicious, or have the greatest density of magical energy.

Entering or exiting the island require someone of the Leviathan Clan as the weather and the very water had become attuned to their demonic signature. It's partially why Katerea doesn't accept visitors off hand. The other was obviously to leave the ones who ask for her attention to stew, till she deems them worthy of it.

Rias Gremory however had came to the island, all on her lonesome, and supposedly without any help. Her power even parted the sky as she came her, so as not to drench herself from the rain. The level of power to do so, Katerea would almost begrudgingly say that Rias was likely an Ultimate Class Devil. Obviously not as strong as herself, but Katerea supposed she shouldn't mentally dismiss Gremory as a child anymore.

It also led credence to the validity of when Rias had been given the title 'Princess of Desolation'. A few year ago, Nekoshou Slaughter had happened, due to the fear caused by the then Stray Devil Kuroka, who had killed her master and his other Peerage members, all while not losing herself to her own power running while. Kuroka had not transformed into a hideous monster due to her complete control of her demonic power, using senjutsu. Naturally, this led other Devils with Nekoshou in their Peerage to be wary of their servants, as they can turn on them without consequence.

Nothing happened at the start, but eventually a Devil King ended up jumping the gun of getting rid of their Nekoshou servant, which led others to start doing the same. That's when Rias Gremory's name entered the public scene in a way, that the True Satan Faction took note.

Rias had went to the Barbatos and launched an attack personally so as to stop them executing their Nekoshou Devil, and then threatened to do the same to anyone else who does so. Then when went and demolished the mansions of five other Pillar houses who had killed their Nekoshou servants.

When complains came to Sirzechs about his little sister abusing her powers, with the five houses who killed their Nekoshou Devils being the most vocal, Rias taunted them openly on live television on being too weak and pathetic so as to be fearful of their servants. When calls for disciplinary actions be taken against the Gremory scion came, Rias asked Sirzech to simply let the five offended Pillar houses fight her in a Rating Game to their satisfaction.

Then Rias Gremory requested a rule change allowing her to fight all five Peerages the Pillar houses would send at the same time. Katerea and many others thought it was bravado. Sirzechs however approved the rule, with the offended Pillars unable to complain without losing face, as that rule was to their advantage.

The Rating Game happened and Rias Gremory destroyed them. It was not a victory of technicalities, it was not a hard-won fight. Rias had completely defeated them, with such obvious margins that no one could question it.

Thus the Nekoshou Slaughter was cut down, preserving and saving the lives of dozens of the Reincarnated Devils.

That's when she had gained her title, 'The Princess of Desolation'.

Katerea personally thought the story might be embellished. Maybe Sirzechs or one of his friend had done something or other behind the scenes. Maybe the victory wasn't as cut clean as officially recorded, edited post-match.

The biggest reason Katerea was skeptical of the events at face value, was because Rias Gremory had been 10 years old when this had happened. Sitting oppose to Rias however, Katerea admitted that maybe there was a grain of truth to the matter.

All too quickly the meal had come to an end, and Rias and Katerea had retired to Katerea's study.

"Wine, my dear? I'm afraid we've run out of poison." Katerea said humorly, as she offered Gremory a glass. She was mentally wondering how many of her solider would die as they take down Rias. Powerful genius or not, she was still Sirzech's sister, and a powerful leverage to hold.

Yet still for now she'll entertain Gremory and see what deal she wanted to negotiate.

"Yes, thank you, Lady Katerea." Rias smiled and took the glass. "As gracious as your hospitality had been, I wouldn't want to intrude any longer. So shall I present my proposition?"

"Go ahead." Katerea nodded as both Devils took their seat by the fire place, a window on the opposite wall with the curtain open adding to the atmosphere of the room. The rare occasional lightning coloring the room and the Devils as their shadows dance from the different sources of light.

Both Devils sat opposite to each other, legs cross, and a glass in their hand.

"Before we begin, I have to ask though, why would you come here alone?" Katerea inquired. "Aren't you afraid of being the territory of one who so...disagrees with your brother's rule?"

"Why would I have anything to fear?" Rias tilted her head, her smile almost seem to have an edge before going back to being relaced. "I'm perfectly safe in the honorable hands of Lady Leviathan."

"Quite." Katerea said back, hiding a grin behind her glass as she drink.

These hand would like nothing more than to play with your body, till you submit and cry out my name, little girl.

Katerea had to admit, there was a certain charm to the girl, that made the Leviathan Heir want to break her and remake her into a pet to keep by her side. Maybe it's the nonchalant attitude, or how her lazy mannerism gives off a feeling of lewdness, as if Rias was ready for her circumstances to turn sexual at the drop of a hat.

All in all, even if Katerea disliked the styles and customs from the Human World, in this case clothing, she can admit Rias made her appreciate them. She wondered what it would be like to remove them off of Rias. It could do as a sutable payment for the annoyances Katerea felt during her meeting with Rias Gremory thus far.

"I've been granted by the Lord Lucifer the power to negotiate a treaty with you, Katerea Leviathan, Head of the Leviathan Clan of the Old Satan Faction, in the hope of reintegrating you back into Devil society, and as part of the governing body of Hell once more." Rias started, her words sounding rehearsted, as she was more interested in her drink than what she was saying.

"Truly?" Katerea held back a snort at the proclamation.

"Yes, we are willing to offer you a seat on the Pillar House Council. It would be worth three votes due to your clan's prestige and history, and you would get first view of any new military bill." Rias turned her eyes from the drink to view Katerea's reaction. "In return we ask that you stop using your influence with Houses Paimon, Purson and Beleth to push for more aggressive war bills, and opposing peace treaty initiatives, as well as blocking the advancements of Reincarnated Devils through our rankings through influencing the Class Rank Exam judges."

Katerea laughed. Nay, she guffawed. It was very much against noble etiquette, but she had never expected to be offered something so ridiculously pitiful in return for her submitting to the new government.

"Ha~aahaa, haha, aaaah, t-that's, ahahahahaha," Katera took a moment to compose herself. "Oh...oh wow, Lady Gremory, I must admit I haven't laughed like that in quite a while." Katerea said, her smile now a bit hardened in anger. "To be honest I wouldn't have even considered a treaty unless your starting offer was a seat on the War Council, a seat on the Pillar House Council worth nine votes, and Serafall Sitri's head on pike." Katerea hissed the name of her family's usrper, her demonic aura flaring a shaking the room, in response to her emotions.

Katerea took a deep breathe to calm herself, while Rias silently watched her, the Gremory's smile never wavering. Katerea now centered, looked at Rias to see what the girl would say in response.

"Yes, I did think the terms were joke as well." Rias finally said.

Oh? Katerea rested her head on her palm, intrigued by Rias's response.

"But it works well enough as a reasoning for me to be here." Rias mirror Katerea's pose but with her other hand. "Since I'm the one who wanted to meet you, Lady Katerea. I have my own deal I wish to make."

"...Really?" Katerea grinned and leaned forward. Well, well, well, how very interesting. Katerea thought at this sudden twist.

"Yes," Rias then took a item out of her breast pocket. "But first I would like for you to watch this."

It was a magic item that projected a pre-recorded image. The device lit up an showed a hologram video of a room, with a brown haired woman sleeping on her bed.

"Huh, I believe that's..." Katerea tried to put a name to the face.

"That is Misla Bael." Rias told her.

A slight frown came to Katerea, as a feeling of anticipation and worry came to her from this unexpected situation. After all, why would Rias show her a video of-

Someone with the Sleeping Disease.

Katerea's head snapped to Rias, looking at her intensely behind a calm façade.

Does she know about Ingvild? But how would she?

"Here's what I wanted to show you, Katerea." Rias just kept her polite smile, while gesturing with her eyes to the recording.

Katerea ignored the act of Rias using her first name without a title, watching the video hoping and dreading what she was going to see. She also made sure kept an eye on Rias all the while.

The video showed Rias and Sairaorg Bael enter the room. The two discussed something that Katerea couldn't hear as the video was without sound, before Rias walked over to the sleeping Misla.

The recorded Rias then held her hand above Misla's body, and made a Power of Destruction orb over her. The orb released lasers moving all over Misla's body, like those of a laser scanner as seen in movies. After very few seconds, the orb stopped and vanished, and Rias stepped back.

After what could very well be, the moment Rias moved away, Misla started to wake up.

Katerea ignored the scene afterwards of Sairaorg crying in joy and hugging his mother, as the hologram turned off anyways. She simple sat back down taking the implications of all of this.

"So, Katerea." Rias spoke, pulling Katerea's attention back to her. "Here's my offer, the chance to get your sister back."

---

"Are you absolutely sure?" Asked one of her servants through an arcane mirror for long range communication.

"Yes, my Lady. It took a bit of work, and burned through some favors to do this on such short notice, but one of the men working for an associate was able to catch a glimpse of her walking throughout the Bael estate. The demonic signature is the same as well, and it seems Lord Bael would be making a statement about this 'miracle' soon." Jarnel Purson, one of her most trusted vassals, said. "I'm...actually surprised, nay, astonished that you managed to discover this so quickly, my Lady."

"Yes," it had been three hours, but Katerea finally had confirmation. Misla Bael was cured of the Sleeping Disasese. "That will be all, if anything new happens you are to inform me." Katerea turned off the connection, making the mirror return to a regular mirror once more.

The Leviathan Heir turned to look at the redheaded Devil, watching the fireplace without a care in the world. Immediately sensing eyes upon her, Rias turned and smiled to Katerea.

Katerea frowned, no longer being as composed as before, but after such news, she thought 'to hell with decorum'.

When Rias had shown her that recording, Katerea first question was to ask how Rias had found out about Ingvild.

"Is that really what you want to ask?" Rias had told her.

And she was right, what Katerea truly wanted to confirm was if the video was real. Rias had stated that she would patiently wait as Katerea used whatever means she wanted to see if the video was true or not.

All the while Katerea had been letting her demonic aura loose, letting it wash all over the castle and showing her displeasure at the idea that she might be toyed with.

Her servants would be able to work without too much of a problem, they are used to her aura and her fury. Someone in close proximitry to her however she find it difficult, even mentally pressuring. Even if they are near, or are, an Ultimate Class Devil, feeling a sufficating aura for hours on end should at least make them uncomfortable, like not feeling right in their seat.

Yet for three hours straight, Rias Gremory was unflinching. Rather, one could almost argue that she hadn't noticed Katerea's aura at all.

Katerea wasn't stupid, she could be hot-headed when she got going, but when calm she can analyze things well. It's how she kept the True Satan Faction logistics going, despite the expenses that her pride told her must be upheld.

Rias Gremory was likely, maybe, stronger than her, but Katerea still held the advantage. They were on her territory, in the heart of her seat of power. If it came to a fight, while likely gruesome, Katerea was sure she would be the winner. The damage of their fight however might end up devistating.

What if the damage reached Ingvild's hidden room?

The thought alone diswayed Katerea from the idea of battle.

Katerea had told Rias that she wouldn't hear her offer till she comfirmed the validity of the video. It also gave her time to think, on what she will do if when the video turns out to be real. After all, coming all the way to enemy territory, even if she was confident in her power, meant she likely had something real to offer.

She couldn't threaten Rias, as it's a horribly bad idea to threaten the person you need to heal someone dear to you. Quadruply so, when it seemed like that healer used the Power of Destruction somehow to cure the disease.

Katerea had run the negotiations in her mind over and over again, during the waiting period. There are two things she wanted. For Ingvild to wake up, and for the mole, or moles, to be named. There was no other way, Rias or her brother, or who else, could have found out about Ingvild otherwise.

Still, as Katerea sat down opposite to Rias, now a firm strict look on her face, opposite to Rias's relaxed apathic smile, she wondered what pound of flesh she would have to pay for her sister's life.

"Fine, it turns out, it's real." Katerea spoke. "For me, I want Ingvild healed, and the name of all the moles within my lands, as well as who else knows about my little sister. I want all of this under a Contract." Katerea said. The magic of a Devil Contract, powered by both Devils, would make sure that the terms are obeyed.

"Well," Rias began. "I'll answer the other things free of charge, and you can verify with the Contract later, as they honestly aren't as important." Katerea raised an eyebrow, but wasn't about to object to a free gift. "First, about who knows about your sister, I would say anyone who knew about her a hundred years ago, would likely to know now. I certainly didn't tell anyone on my end, simply convinced the Lord Lucifer that I would visit with a treaty that you would most definitely accept."

"Dangling Ingvild's cure for my cooperation, is that it?" Katerea's curled her lips.

"Oh not at all," Rias waved her hand once like the effort was took much to repeat it, and placed it back on the arm rest. "You don't have to sign a treaty or anything like that."

"...What?" Katerea blinked in surprise, taken aback.

"Now where was I? Oh yes, moles!" Riase smirked, like she had a private joke Katerea wasn't privy to. "There are not. ...At least none that I know. I certainly didn't hear it from anyone."

"Then how could you have known about Ingvild?" Katerea demanded.

"Ah, ah, ah," Rias waved a finger back and forth. "You asked me if a mole told me, and I said no one did. How I found out however," Rias playfully laid her finger on her cheek and continued. "That I may tell you if you agree to my offer, and after the Devil Contract is signed."

"You little..." Katerea gritted her teeth, and forced herself to calm down. She didn't want to jepordize her half-sister's chances of awakening on a moment of anger. "Fine." Katerea said through her teeth. "Now, what do you want?"

Rias's lips stretched wider, her smile now having a slight cruel edge to it. The lightning strike outside, hide her face behind shadows in the light, and her eyes look redder than Katerea remembered them being. Katerea hated how well timed that lightning was, as she looked at the normal smiling Rias, whose face was lit by the fireplace.

"You." Katerea blinked, almost not registering the words said for a second. "I want you, Katerea Leviathan."

---

The Devil Contract between Katerea Leviathan and Rias Gremory in very simple terms can be summaries as thus:

"In return for Rias Gremory curing Katerea Leviathan's half-sister, Ingvild Leviathan of the Sleeping Disease and waking her up in full health and without injury or harm, Katerea would enter Rias's Peerage, accepting whichever Piece, Rias gives her after the Piece Worth Test and Rias's own determination.

Also, Rias Gremory will answer how she knew about Ingvild Leviathan honestly and not spread her knowledge about Ingvild to anyone without Katerea's approval first."

The part about accepting whichever Piece Rias decides to give her was the only stipulation Rias had insisted on, but beyond that...there were no other conditions.

To say it was too good to be true would be an understatement. Katerea almost wanted to argue the point about accepting just the Pieces she was worth, but the sheer freedom this Contract offered was too...ridiculous to argue about.

Yet couldn't help it and Katerea demanded to know why she won't be made the Queen Piece. Rias said it's because she doesn't want to use up her pieces inefficiently.

"I've never Reincarnated an Ultimate Class Devil before. So surely you're worth a lot of Pieces. This is mostly for my own peace of mind." Rias had said by way of assuring Katerea.

Katerea accepted the wording of the Contract after that, since it was only one issue. The thing is, the Contract didn't state that Katerea had to be by Rias's side, or even surrender any of her Clan's power over to her future King. She could even hang around Rias in important governmental locations, or False Satans territory and have the excuse and protection of being part of Rias's Peerage.

The Leviathan Heir almost though that, the young Gremory Devil in her lust for Katerea just simply didn't care, as long as she got her on her Peerage.

Yet every part of me is telling me that that's wrong. Katerea couldn't help but think. At least I don't have to worry about Ingvild's safety with the other clause in the Contract.

In the end, either Rias Gremory was a colossal fool more than Katerea ever imagine, which makes this the best stroke of fortune to fall on her lap, or...Rias Gremory's schemes were too complex for even Katerea to anticipate.

Ha! Yeah right. Katerea mentally snorted. Yet at the content smirk on Rias's face as she signed the contract with magic fueled blood, and the Contract Bond snapped into place, Katerea couldn't help but wonder. But, what if...

In the end, Katerea decided to cross that bridge when she got to it.

Besides, if worse comes to worst, Katerea checked the Contract Bond with her demonic power once more. I can just break the contract. A Devil of my power can easily do that without a problem.

---

Katerea waited with abated breath, as Rias's power finished up. She was instantly by Ingvild's side as Rias went into the background to let the siblings have their moment.

The next second felt like an eternity.

Then another.

And another.

"Wha-" Just as Katerea was about to shout at Rias for being deceived, Ingvild's eyes began to flutter. "Vildy, hey," Katerea gently cradled her little sister's head. "Hey dear, come on wake up."

Ingvild groaned, her eyes squinting from the light and a yawn broke out, as she struggled to get up.

"What's wrong with her?" Katerea said impatiently.

"My lady," a doctor under Katerea's employment spoke. "She is simply tired. After all, she had been sleeping for-"

Rias coughed loudly.

"Quiet." Katerea glared at the doctor as she said to him. She was very grateful for the Gremory at the moment, as she didn't want to break the news to her sister in such a fashion.

"Big Sister Kat..." Ingvild said in a droopy voice. "Good morning," she smiled faintly, but color was slowly returning to her face, her strength coming back. She yawned and stretched, able to stand on her own. Ingvild looked at the window in her room to see it's dark out. "Ah," she turned to Katerea in worry. "Did I oversleep?"

With teary eyes, Katerea couldn't help but let out a laugh, and hug her sister.

Rias excused herself to Katerea's personal office with a guard accompanying her. She wasn't needed right now as the doctor checked over the cured girl, and the siblings caught up.

---

Telling Ingvild that she had caught the Sleeping Disease and it's been a hundred years since she woke up was difficult enough. Giving the news that not only had Ingvild's human mother, but also their father had died was a devastating blow all on it's own.

The young Half-Devil had cried herself for a long time, holding her sister not wanting to let go of her, afraid she would be gone too. After that, Katerea took Ingvild to visit their father's grave as it was on the island, before they headed off to the Human World. Katerea took Ingvild to visit her mother's grave, and walk around her old hometown. She didn't actually want to do the second part, but her little sister insisted on wanting to see proof of the world having moved on.

It was much later that the Leviathan sisters returned to their home, with Ingvild much more subdued than the vibrant girl she usual was. Katerea walked with Ingvild to her room, caressed her face and smiled, then pulled her into a hug as if to shield her from all the worlds.

"No matter what, I'm right here and I'm not going to leave you." Katerea pulled back, but didn't let go. "Rest up, I have some business to finish. If you need me for anything, I'll be in my office."

"You still didn't tell me what it cost you." Ingvild frowned, but stayed in her sister's arms, holding her in turn.

The topic of healing her had come up, and the deal with Rias Gremory, but Katerea had been evasive as to what it entailed. Just that it all worked out and that Ingvild was better because of it.

"Nothing you need to worry about. It was nothing steep for me, and even if it was, you are worth it and more, Vildy." Katerea smiled at her sister. Her expression was one none had seen for a lifetime, and not one she would show others either.

"Kat..." Ingvild blushed and her eyes watered, and she hugged her older sister tightly once more.

---

Katerea returned to her study mentally drained and needing a drink.

It's been hours since Ingvild woke up, and she spend the day with her little sister, to help Ingvild face her new reality, and help her cope through it. Katerea checked with the guards stationed outside of her office, and was told Rias hadn't left it in all that time, nor tried to leave it. She dismissed the guards, as she didn't want any to be near when she took Rias's Evil Piece.

"I'm sorry for the wait." Katerea said as she entered her office and closed the door behind her, heading for the wine collection atop the fireplace.

Rias was still there and seemed unfazed as usual. In fact she was reading a romance novel from Katerea's library. From the looks of it, having actually finished multiple novels that were stacked on a small table next to her.

"It's fine, I had cleared my schedule for a few days for this, so I didn't mind waiting." Rias said as she closed the book and put it on the side table.

"I hope you weren't bored too badly." Katerea said. "Why didn't you try to look around the castle?" She asked casually, feeling some formality should be dropped after everything so far.

"I don't let myself get bored easily." Rias replied. "I figured it would be rude to walk around without the owner, and your library had a good collection to go through." She mentioned the fictional books.

"Really? Access to the personal library of the True Leviathan Heir, and you chose to look at novels?" Not that Katerea had any of the real important book on display. She poured two glasses, and walked toward Rias with a glass handed out.

"They're the only thing that interested me." Rias looked at the last book she was reading. "It's funny, classic novels don't seem that different to contemporary works now." She then stood up and took the glass.

Katerea raised an eyebrow. "I looked at the novels they have today. None of them are like the classics." She drank her glass.

"I wasn't talking about Hell." Rias smiled and drank hers in turn.

"The Human World?" Katerea's other eyebrow joined the first, as she refilled her glass and Rias's.

"With the internet and anonymity a lot of humans are writing freely and without restrictions or fear. You'd be surprised at how their unfiltered fantasies matches up with our old fictions." Rias chuckled. "I'd reckon that some of their fiction are even more extreme than ours." She said gesturing with her head to the book she last read, showing a woman being raped, by what would today be considered a Stray Devil, on the cover.

"Hmm," Katerea made a sound and took a sip of her wine. The two were silent for a while, just taking each other's measure. "So 'cleared your schedule', huh. Sure of your success, are you?" Katerea finally said with a coy smile.

Rias smiled in turn. "I try not to assume victory, but I do my best to prepare." Rias drank her glass in one go, an intensity slowly rising in her eyes, as she focused on Katerea.

Katerea found herself smiling and drank her glass in turn. She felt a skin tingling heat go through her making her nipples stand, at the attention the Gremory had toward her. The way Rias looked at her behind that assured smile was too obvious, but Katerea couldn't really say that she disliked it.

Both finished with their drinks, placed the glasses on the large desk in the middle of the office.

"So, I guess we'll do that little test. Although I don't see the point. Obviously I have the highest potential you've ever recruited." Katerea extended her hand toward Rias who took it.

"We'll see," Rias said with a simple smile and cast the Evil Piece Worth spell. Rias's demonic aura slowly engulfed Katerea's hand and began rising up. Katerea felt a shiver from Rias's aura touching her own.

A lot can be told from a Devil's aura, and what Katerea could tell was that Rias's aura was rich in power, but seemed to be held back, under tight control. Yet Katerea could now actually feel Rias's excitement, her lust as a physical thing, despite her aloof expression.

It will be fun controlling this girl, and she'll likely be even stronger and more influential in the future. This deal really might be for the better for me.

A magic circle floated above Katerea's palm with a stylized numerals in it.

The circle displayed one, then two...

And stopped.

Katerea's smiled stilted. She blinked as she focused on the spell and the results shown.

Nothing happen. The number stopped at two.

"That is wrong." Katerea started to frown. Yet seconds passed and the number didn't change. "Are you mocking me, Rias Gremory?" Katerea growled out.

"Of course not," Rias said sincerely. "This is genuinely the result of the spell." Rias cancelled the spell.

"Then you did it wrong!" Katerea's full aura blasted out rattling the room a bit. "Repeat it."

"As you wish." Rias nodded with an amused look and cast the spell again.

The spell showed one, two and once again stopped.

"Again!" Katerea let her demonic power explode.

She simply unleashed her power, focusing it all on the spell, yet the might of an Ultimate Class Devil wouldn't leave their environment untouched. Such action would normally shatter the place she was in from the sheer magical might, blowing out the windows, cracking the walls, and demolish the place around them.

Had Katerea been focused on her room rather than the spell result, she would see that it was unaffected. As though the whole room was reinforced to withstand her might.

The spell result stayed the same again and again.

"Enough of this shenanery. I tired of your ineptitude at a spell so simple. I'll do it myself!" Katerea shouted, casting the spell in reference to Rias to see her own value to the Gremory. All the while Rias just smiled in amusement. "Now, the true result is clearly..."

Katerea stopped dead in her tracks.

Two Evil Pieces.

She couldn't deny it anymore. For Rias Gremory, Katerea's potential was worth two Evil Pieces.

"That's..." Katerea let go of Rias's hand in shock, taking a step back. An ugly look came to her face, as she gritted her teeth. "Doesn't matter. With my connections, power and history, you will never have a more valuable person as Queen. Give me the Piece." Katerea demanded, not fully thinking through on what the test result implied.

"No." Rias plainly stated. Her expression didn't change, but her tone was firm like a judge's command. Even Katerea was taken aback for a moment. "See Katerea, when Devils recruit people for their Peerage, they choose based on the person's skill, powers, and as you said connection, and give them an Evil Piece that compliments said person." Rias tilted and shook her head. "But I don't do that."

"What does that have to do with anything?" Katerea found her throat a bit dry. I'm not nervous. She told herself as her brain started catching up to the signs all around her.

Rias wasn't affected by Katerea's power outburst in the slightest.

The entire room wasn't affected by her outburst. Her powers didn't diminish nor weaken, the room was simply strengthen. Now that she took a moment to look, she could see Rias's demonic power outlining her room. Rias's aura filled the room in such a way that if Katerea wasn't looking at it, she wouldn't have noticed.

When did she do this? ...How did I not notice?

"You see," Rias said getting Katerea's attention again. "I don't like wasting my Pieces. After all, I only have a limited number." She held her chin and closed her eyes, as though in deep thought "So giving someone a Piece with a high number than their potential, even if it compliments their abilities, is something I really don't want to do." Rias opened her eyes, and the glow of destruction shined within them for a moment. "So, I really don't want to use any of my Pieces worth 3 Pawns, let alone the Queen." Then she smiled amicably, like she was giving good news. "Good thing I still have two Pawns left."

"I'll never accept that!" Katerea swiped her arm, as if gesturing to cutting through the discussion.

"I'm afraid you will. We have a Contract, Katerea." Rias smiled patiently, as if holding back from outright laughing.

"What Contract!" Katerea decided enough was enough. She felt the Contract with her senses and magically held it, then she rushed her Ultimate Class demonic power through it, overwhelming it and- "What!?"

The Contract held.

Her demonic power seemed to go through in the beginning, before hitting a wall and shutting down. Katerea couldn't break it.

"That's..." Katerea couldn't believe it. Yes, Contracts are magically sturdy, but a Devil of her might should be able to break one, even if there's a bit of backlash on both parties. "Even if your demonic power was twice of might, it should still break!"

"Quadrice ." Rias said.

"You...Are you claiming to be four times stronger than me!?" Katerea shouted.

"Oh no, I'm not claiming anything, nor am I saying I'm four times as strong." Rias said in a friendly tone. Katerea could feel Rias's slowly unfolding aura now, one that matched her own. "I'm saying you need the difference between parties to be four times at most to be able to break a Contract." Her smile was now darker, her teeth showing a bit. "That difference between us though..." Rias paused to let out a small huff, and not break her calm noble mask. "Well, that's unimportant. You tried to break the Contract, and while we may not have written it down, an action like that," Rias licked her lips. "Demands punishment."

This time Katerea smiled like a shark, and gathered her power for combat.

"Ignorant child, speaking of things beyond her. You dare think you have the authority to judge me!" Katerea's wings materialized as her hair begand rising up from the energy coursing through her.

"Authority..." Rias's aura rose once more to match Katerea...and then it went higher.

That's when Katerea noticed something that made the blood rush from her face.

Parts Rias's clothes flared up like fire was rising from them.

No.

The fire was what the clothes were made of.

But that's not fire. The more Katerea stared, the more fear rose up in her. Solidified ...Power of Destruction. The Gremory's very clothes were made from her bloodline's iconic power.

"That's...that's not possible." Katerea couldn't help saying.

By it's very nature the Power of Destruction is the most violate energy there is. This was the reason why Sirzech Lucifer was considered a monster among monsters. To have the control to shape it and give it form that is constantly on you, and not destroy everything she touches and is around her...

Katerea couldn't even fathom someone with that type of control. It would be easier for a non-shapeshifter to control their each and every individual cell.

"It's always amusing to hear that." Rias said. "It honestly just means no one had succeeded yet."

The room was suddenly suffocating to Katerea. The sheer power within it almost brought the Leviathan Heir to her knees.

Wait! Katerea finally looked around her. Why is the room in one piece? Why is nothing broken?

"You finally noticed." Rias said, and when Katerea looked back, spheres of Destruction were launched at her, so fast she couldn't perceive them.

"Huurgh!" Katerea wasn't harmed though. Not really, rather the spheres upon hitting her turned into bands, before grapping her arms, legs and neck and manhandling her, throwing her on top of her desk. "Let...me! Go!" She struggled with all her might, all her strength, yet it was to no avail. She never noticed, or focused on, how constructs made from Destruction didn't harm her, just immobilize her. "Do you think no one in this castle wouldn't have noticed our power acting out by now?" Katerea tried to smile through her struggle and growing fear. "You have made an enemy of the whole Leviathan Clan today Rias Gremory. Soon, the True Satan Faction and all those who sympathize with us will be galvanized against your brother and the shameful new rule. All because a small stupid little child decided to-"

A small laugh broke out of Rias's mouth. The action so unusual to how Rias acted so far, that Katerea blinked in confusion.

"No, no, please don't let me interrupt." Rias elegantly covered her mouth. "I'm just surprised you didn't figure it out already."

"Figure-WHAAA!" Katerea had been lying on her back, hands to the side. Her neck and wrists were held by the bands of destruction, not allowing her to move them. Then the bands on her legs moved up, presenting her body to Rias.

"This entire room is covered in my aura, yet no one is shouting and rushing in. Why is that?" Riased moved, hands in her pockets, till her crotch met Katerea, then Rias bent over till they were breasts to breast. "Because not a single modicum of of my energy is leaking out. Of course, none of yours if going out either, can you guess why?" She said face to face with the paling Katerea, her eyes widening as she understood.

"You're destroying any of the aura from leaving." Katerea said.

"Yep," Rias smiled encourgingly, like dealing with a child that finally figured out the answer to a simple problem. "By it's nature my aura holds traits from the Power of Destruction, so when your power hits anything inside the room, the walls, the bookshelves, the desk, the door, anything at all, your energy gets destroyed." Rias stood back up, yet leaving her crotch grinding against Katerea's. "So, to an outside observer, nothing is out of the ordinary. We're just talking. And no one will come because you dismissed them earlier."

"I'll scream." Katerea shouted. She couldn't believe how helpless she was, that she would resort to crying for help. She couldn't believe how this situation reminded of her...certain...fantasies-No! Not the time.

Rias threw her head back and laughed.

Rias laughed and laughed and laughed. She laughed continuously not needing to breath. A sound that shook the Leviathan Heir down to her soul.

Katerea thought the girl was mad, yet...

"Oh dear," Rias said coming down from her high. "I'm sorry, I just never expected to hear you say that phrase." Rias chuckled some more.

...It's because Gremory could see how pitiful Katerea sounded. How weak she was.

No, I don't like this. I don't!

And how wet she was.

Katerea's nipples were standing, her sex was hot, sending sparks of pleasure through her, from Rias's bulge grinding against her cunt.

Wait.

"What?" She struggled to look down, before the energy collar on her neck eased up for her to move her neck up. There was the beginnings of an outline of something in Rias's pants.

"But please Katerea, scream as much as you want, as loud as you can." Rias gabbed both of Katerea's legs from the back of her knees. "You see earlier you asked me 'what gave me the authority?'" With telekinesis, the front of Rias's pants were undone, while the pants stayed up. From Rias's bare groin a giant cock complete with hairless balls was growing, and getting larger by the second. "Because for you of the Old Satan Faction, letter of the law, spirit of the law, Contracts, all of that is secondary to power."

With a pulse of energy, Katerea's clothes began disintegrating sans her socks, shoes, arm wear, and glasses. Her hair started coming undone without anything holding it up.

"H-How? You're only a child." Shapeshift, while one of Devilkind's natural ability, is one that took years to get a handle on. Teens can learn how to look as their idealized self. Adult, by humans standards, can change certain physical attributes within reason.

Full on fleshshaping however, to give oneself a sexual attribute of the opposite gender, is suppose to take years or even decades. It's why even Katerea could at most used it in limited ways, such as extend the length of her limbs or increase them, but nothing too different than her normal form.

"Persistence." Rias said as her cock continued to grow. Katerea could felt the phallic flesh against her pussy, could feel how it's girth was slowly widening. "Because one day I wanted to fuck, break and breed a defiant hot slut like you." Rias chuckled. "Well, not you specifically."

"If you do this," Katerea bit back a moan. Her body felt too hot. Being skin with skin with Rias was causing their auras to interact with one another. The sheer Lust Rias exuded was affecting Katerea's being. She was started to sweat from how hot her body was becoming. Her throat felt dry yet she didn't want water. Rias kissing me. Her saliva quenching my-no. She forced herself to cut the thought there. "I will never forgive you. I'll do everything in my power to destroy you. My grudge will follow you till my last speck of existe...T-that's too much." Katerea found her threaten stopped short as Rias's cock kept growing.

When it finally stopped, Rias pushed her dick pointing upward down on Katerea's torso.

The Leviathan Heir sucked in a breath, found herself inhaling the musk of sheer masculinity, making her arousal jump even higher, and making her rage...it was difficult to form an argument, let alone be angry.

Rias's magnum bitchbreaking futa dick had reached all the way to between Katerea's boobs, and easily filled the gab between them. Katerea could never encircle that girth even with both hands. The apple-sized knob was already leaking precum just making her sweaty chest soaked. If I lean forward I could lick it. Yet she couldn't, the energy collar wasn't let her.

The heat from the giant member, and the aura interaction of both Devils from the skin to skin contact, was making Katerea almost pushed to the brink. She could feel the heat and size of the balls against her bottom, larger than the cockhead. Katerea could feel them twitching, churning wades of cum to breed her. Shots of bliss were rippling through her. It was like experiencing mini-orgasms from a long session of edging, yet... It's only been a few seconds. She thought with shame and arousal.

"Well," Rias let go of her dick, letting it stand again. She rubbed the head around the urethra in circles, letting her finger grow wet from precum. "I need it to be very clear to you, the price of cheating me, of defying me." There was a growl in Rias's voice, something that truly evoked the image of a Devil to humans. "I was perfectly willing to be fair to you before, you know." Rias smirked and looked a side, like a mischievous child. "...Well, to be honest I was kinda hoping that you would act like this from the start. But you were surprisingly reasonable for someone from your faction." Rias inserted her finger into her dickhole, it was wide enough to take the sounding of her digit without resistance, making the red hair Devil hum and shiver a bit from the sensation. "I suppose even annoying elitists having loved ones around would make them reasonable."

"Don't touch Ingvild." Katerea instantly said, her arousal pushed back by sheer dread. "Don't involve her. Please!" She desperately pleaded, not caring about station or pride at that moment.

"Of course not!" Rias spurt out, sounding genuinely offended. That gave Katerea pause, as well as relief and hope. "Unlike most of our race, I don't actually like breaking the cutie. I've went to a few orgies, and frankly I find it to be a disgusting practice." Rias curled her lips and shook her head. "Seriously, what's the point of doing that? It's like ruining a perfectly good fruit, just to be an asshole." Rias wrinkled her nose, and took her finger out of her dickhole, her arousal dropping a smudge.

Katerea supposed Rias's reasons are selfish but genuine. Selfishness was something she could trust in.

"Now breaking the haughty on the other hand." Rias's smirk returned, and her dick pulse in anticipation. A pulse that sent a ripple through Katerea, causing her another mini-orgasm.

Katerea couldn't wait to have that colossal cock rearrange-No. She battled the thought again, yet her inner defience felt weaker. She licked her lips to wet her dry mouth, as she looked up to see Rias materialize her two Pawn Evil Pieces. Katerea blinked in confusion as she saw Rias place one of the Piece on the tip of her dick, right on the wide hole.

"W-what are you doing?" Katerea tried to sound wary, yet all that came out was anticipation.

"Well, you didn't want to take my Pieces that normal way." Rias moaned this time, as she inserted the Evil Piece into her cock, and start travelling down the tube. "So, I'm gonna give it to you my own way." Rias's grined sadistically, as she inserted the second Piece.

Katerea watched as both Evil Pieces were treated as sex objects, and went down Rias's cock where they disappeared, Katerea assuming into her balls. Then she understood what Rias implied.

"Wait..." She looked up to meet Rias's eyes, to see them flashing with glee that sent Katerea's heart racing.

"You see, Katerea." Rias bend down once more, pushing Katerea's legs till they were next to her ears, and trapping the bitchbreaker cock between their bodies. "I'm going to make you part of Peerage in a way that's undeniable." Rias's face, her lips, her voice, it encompassed Katerea's worldview, making her want to look at nothing but it. "The reason why I didn't bother with adding provisions in our Contract to ensure your loyality, is because by the end of today, everything that you are, you body, your mind, all of you," Rias neared Katerea's face, their nose touching, their gaze unbreaking, their lips a breath away. "Will be mine."

Rias slammed their lips together, her tounch invading Katerea's mouth, dominating the Leviathan desendant throughly.

Katerea body exploded, everything that had been building up till now burst out in a rush of climax, that swipt her senses. Her toes curled inside her shoes, as her body shivered uncontrollably. The pleasure moved like an electric shock in her system, before exploding like fire in her mind.

Both Devil women moaned, one in indulgence and one in submission. Rias's cock spurted out precum hitting their chins, soaking and adding to their wet kiss.

Katerea moaned as Rias pushed away from her. Her tongue poking forward, like a child begging for their mothers milk. Realizing what she was doing, Katerea quickly pulled back, closed her mouth and looked away. Yet Rias's smirk showed Katerea's want had been seen.

"Now," Rias stood back up, holding Katerea's legs like a machine that can't be moved, and pulled back her gigantic futa cock, and about to make Katerea accept her as King. "Time to give you what you've been waiting for."

"I-I'm not!" Katerea cried out, protesting in futility. "And this isn't gonna work. You're more likely to kill me than fuck me."

Riase raised an eyebrow. "My dear you're not a human, you can take this." She place the head against Katerea's pussy, causing Katerea to feel a tingle along her spine and scalp, like a filled up balloon of excitement filling up even more.

Rias pushed the cockhead slightly inside, and Katerea was quickly reminded that Rias's body was not just physically strong and hot, but also charged with demonic power. Power that on the surface of her skin was making her aroused like a bitch in heat, and orgasm like a weak-willed slut.

And if that get inside me... Katerea thought in dread and anticipation, as she looked at the cock poised to break her.

"More than that," Katerea looked back up to Rias's face. "Like you said, you are an Ultimate Class Devil. Not just in power but body and strength," the unexpected praise brought a blush out of Katerea despite the situation. "It's why I could finally, finally use something like this." She gestured with a look at the titan dick.

Katerea opened her mouth, she wasn't sure what to say.

Only for Rias to no longer have the patience to delay her meal. She thrusted forward, pushing her hip with force into Katerea's depth. Rias figured the Leviathan descendent was wet enough for that.

Katerea's mouth opened in a silent scream. Like the air was caught in her throat. Her vaginal tunnel widening to accommodate something it never encountered before. More than that, Katerea could feel Rias inside her. Feel her in a way beyond just physical descriptions. The Gremory's aura laced with power, cruelty and destruction, but also with a hunger. A Lustfor to take, devour and dominate. A Lustsolely focued on her.

Katerea Leviathan then knew she couldn't win. She would be broken. All this time, she had been unleashing her demonic power to the point of not focusing on controlling it anymore, yet it was nothing before Rias's demonic power. A power that easily engulfed hers from all sides, and was about to overtake hers completely.

It was inevitable. It was futile. Rias Gremory wanted Katerea, so Rias will take her.

The worst part for Katerea...

"Huh, half way in, not bad." Rias said panting with desire, one that Katerea found herself unconciously matching. "I told you, you can take it." Rias throbed her dick, and Katerea's cunt hungrily tightened against it, as pleasure flashed through the Leviathan desendant's body. "You know, I'm really glad that you have the same fetish. Or at least I hope so." Rias grinned.

"W-Whaa..." Words were difficult to come to Katerea.

"You can't always tell from someone's library, but if a theme is consistent enough in their dirty novels." The dots connected in Katerea's hazy mind enough to panic. Yet her rapid heartbeat wasn't in fear. "Then it's likely their kink." Rias leaned forward, getting closer to Katerea's face, and in turn letting the Ultimate Class Devil full feel and know the futa dick was at the gate of her womb. "I've always wanted to try wombfucking, I just never had someone that can take it." Rias grinned, her teethful smile seemed to stretch all over her face. "I am so glad to have found you, My Pawn."

Rias pulled back and thrusted deep inside Katerea, her body coiled to move with strength and purpose. The bitchbreaker futa cock punched right through the cervix seal, opening up hugging Rias's dick like a second vagina.

Rias roared at the sensation, the boiling arousal reaching it's peak, and she didn't want to contain it any further. She wanted to partake in the pleasure, and let go, cumming and bursting her load directly into the Leviathan woman's womb.

Katerea screamed, shouting with all her might as if her strength have been turned to declaring how much pain and pleasure her new master was giving her. Her torso had been visibly bulging with Rias's member, and now her stomach had a clear roundness in it, as if she was at the beginning to showing pregnancy.

Rias let out a sigh of contentment as she stood back, letting Katerea's legs fall around her. Katerea let out a sigh of tiredness, relieved and disappointed her ordeal was done.

"Is it over?" Katerea asked.

"Over?" Rias asked with a raised eyebrow, a look of amusement on her face, that Katerea was beginning to sent her heart a flutter. "My dear that was only one Piece." Katerea took a moment to focus, and yes, she could now feel an Evil Piece swimming in her womb. "Now for the other."

The fucking this time was violent. Before even with Rias hammering her meat pillar into Katerea, it was all apparently just Rias testing the water. Experiementing and seeing what sensations were like. Now she was slamming into Katerea with wild abandment, using the Leviathan's body as her personal fuckdoll.

And as Katerea learned her body was durable. She could take it. Her mind however could not.

Every slam, every orgasm, every pulse of demonic power, all of that Lust compounded and pounded into Katerea's being, making her want it, making her shout and beg for it.

"Ah ah ah yes, yes, yes!" Katerea cried out. "Fuck me, Mistress!"

"God damn you absolute horny slut!" Rias shouted as she used Katerea's pussy and womb as an onahole. Her invoking the Lord sent a showering pain through their body that only added to their pleasure.

Because just as Rias said, those of the Old Satan Faction understood power. They coveted it and gathered around it. And right now Rias might as well be Katerea's god, and Katerea was doing everything she can to worship her.

"Fuck yes, here's the second one." Rias roared. "Take it you whore that sold yourself for two Evil Pieces!" In her excitement Rias desolved her clothes, sans her shoes. Katerea took in her future King's body in all her glory. A delectable, firm and tight, yet supple body with a hint of muscle definition, that Katerea knew was much stronger than it showed, as Rias's expertise of shapeshift would mean she was more powerful than she looked.

"Do it, Mistress! Do it! Fucking breed me!" Katerea shouted in return.

This time Rias didn't let herself hold back, just chasing her orgams from the get go. She came and poured roped after thick rope of yogurt like cum into Katerea's babymaking room, inflating it further, making the Leviathan look like she's with child. Rias's child.

It occured Katerea that this might very well be her future. Thrown in a locked room by Rias as she wasn't trustworthy, just being used to sate Rias's lust, and eventually being used as a breeding sow for the Gremory Clan. Ignoring how that wouldn't likely to work due to Devilkind's low fertility rate, Katerea shuddered at the thought in esctady and despair.

"Now I will ask you, Katerea Leviathan. Where's your place?" Rias's hand hovered over Katerea's stomach, where now both Pieces were inside. She didn't need to do this gesture to connect to her Evil Piece, but the ceremony was for Katerea and the symbolic importance than anything else. "Who do you serve?"

For a moment, Katerea hesitated. Maybe a remnant of her pride that was still left in her. Yet, even if it would be useless, she thought of saying 'no'. Except...

Can I live without her?

The thought rang in her mind. After what she experienced today, after what she went through, would she want to never feel this pleasure again.

It was stupid. It was idiotic to throw away her family pride, traditions and personal goals, yet she knew in her heart. Her body had submitted, and her mind was just dragging it's feet in following.

Rias's cock throbbed once and her aura flared, and Katerea's resistence crumbled away. The smirk on the redhead's face told Katerea, Rias knew her answer, but enjoyed watching her degrade herself for her new master's sake.

"You. My place is to serve under you, My King."

Rias activated the Evil Pieces and Katera's fate was sealed.

---

The next few hours in the Leviathan Clan Head's office, were spent with loud shouts and screams, along with the thumping of flesh against flesh as the Devils fuck on every surface of the room. They fucked on the coach, the chairs, the walls, even the ceiling one time. The room was partially thrashed, and large puddles of semen were around the room from when Rias filled Katerea's womb, then took her cock out, letting the resulting load fall on the floor. The main desk itself was drenched with cum, and the smell overtook the whole room.

Now Rias was sitting upon Katerea's chair in front of the Leviathan Head's desk, with the affordmentioned Devil under her own desk sucking off Rias's cock. Rias had shrunked her dick a bit to make it physically possible for Katerea to have it down her throat. It was now a sizeable forearm long, and a fist and a half thick, rather than mindbreakingly huge as it was before.

Sensing something bothering her Pawn, enough for her mind to wonder, when she should be worshiping the cock she was gulping, Rias brough up the issue herself.

"Katerea," Rias spoke, making Katerea paused her blowjob. "What's on your mind?"

Katerea took the cock out of her mouth, looking like she was missing it already, but also deeply in thought.

"It's-" Katerea was about to say 'nothing' but Rias wasn't having it.

"Do not say nothing." The sharp tone sent shiver down Katerea's spine that had her nipple harden all over again. "An issue that concerns my Peerage is an issue that concerns me." Rias rested her elbow the armrest so she could lean on her fist. "So, out with it."

"...It's my sister, Lady Rias." Katerea finally spoke.

"What about her? She should be in good health, and would have the resources of her clan at her disposal." Rias said. "I'd say her life is on a good track should nothing eventual happen."

"Yes, but wasn't trained for politics, let alone rulership. I don't want the Three Factions or others gaze upon her. And while I know my place is by your side, I don't want to leave her alone and undefended." Katerea spoke her heart out.

"Aren't you misunderstanding something?" Rias said, causing Katerea to look up purplexed. "I told you, everything that you are belongs to me. That includes your Clan and your sister."

"That's..." Katerea's throat clamped up. She wanted to protest, yet the thought of handing her sister over to her King on a silver patter filled her with lust and self-loathing. It would be so hot though...but no, I need to protect Ingvild's purity and innocence.

How that desire conflicted against her lust sent Katerea's pussy running.

"Oh relax, just like I told you, I won't fuck your sister. Breaking the cutie isn't my style." Rias then gave a sadistic grin. "Romancing the cutie on the other hand, that's a different topic."

"...no." Her mouth said one word, and her body implied another, as a shiver of arousal ran through Katerea.

"I mean, Ingvild is a good girl. A girl that cares about her big sister. Why if she finds out what Big Sister Kat had to do in order for her to be cured, I would say she would be so worried, she would want to take your place." Rias looked amused as she spoke out her imaginary scenario. "Of course, I can't have that, as I got you fair and square, so she would just ask to also be in my Peerage, to be by your side. Not knowing what a willing filthy slut her older sister is."

Katerea panted as Rias kept talking, and took the futa cock in her mouth once more, and without direction. She bobbed her head while holding her King's gaze, showing her love and submission to her master, as she enjoyed the fantasy Rias constructed.

"Of course I would agree. Her joing will be normal unlike yours. I wouldn't take her then, but I will slowly expose her to acts of degeneracy while she's around. Get her used to intimate touches, then petting, but never good fully intimate."

"Shurgh! Shurgh! Shurgh!" Katerea's wet blowjob echoed in the room, as she spat and wetted the fleshpole in her mouth. Tasting the delicious dickmeat and wanting the juicy finish inside.

"Eventually she'll be so filled with lust she'll approach me herself, and that's when I'll take her." Rias looked Katerea straight in her eyes as she said that statement. Katerea came at Rias's words. "Fully, consentually, she will give herself to me, Katerea, and that's when I'll make her mine." Rias grabbed Katerea's head and pushed her down to the base.

Katere found herself climaxing once again on, euphroia clouding her mind, that she almost missed her King's next words.

"Of course, you can always stop that from happening." Rias said with a lopsided smirk. "Just get out from under there and tell her not to join my Peerage.

A knock came from the door.

"Big Sis Kat, are you there?"

Katerea's eyes widened as she looked at Rias in alarm. It was Ingvild coming to visit. She want to protest, to move, to do something but...

"I'm coming in." Ingvild opened the door to see Katerea's office with Rias sitting in her sister's chair. "Oh! I didn't know you were still here, Lady Gremory."

"Ah, hello Ms. Ingvild. Me and your sister were just finishing up, but she's gone away for the moment." Rias casually explained, while leaning back in the chair normally belonging to the Leviathan Clan Head. "Please come on in and wait for her.

"Oh, I see, and thank you." Ingvild entered the room closing the door behind her. "Um, that chair..." She didn't want to be rude, but she felt that she needed to tell their guest on the importance of that seat.

"Yeah, it's really comfy and bouncy." Rias said with a playful grin and moved back and forth lightly bouncing on the seat, to show Ingvild its effect. "Wanna try it out."

Ingvild giggled at Rias's childish attitude, but felt at ease in the Gremory's presence.

"No, thank you. I think sister would get mad." Ingvild went into the room, taking one of the chairs in front of the large desk.

"I won't tell her if you won't." Rias raised a hand to cover half her face, and whispered conspiratory. Ingvild couldn't help covering her mouth and laughing in turn.

In the moment between Ingvild announcing herself and entering, Rias had restored the room to it's previous state. Yes, it took some quick application of telekinesis, repair spells and Power of Destruction, the room was now identitcal to how it was before. Rias even reforged her clothes to appear normal.

The top half at least, her bottom was bare as Katerea was still between Rias's legs, having chose to continue sucking her King's glorious cock.

I'm sorry, Ingvild. Katerea though, more with lewdness than sorrow.

The two girls, Devil and Half-Devil talked and joked for a while before inevitably to Katerea's reluctant, yet excited guilt, it happened.

Her kindhearted, lovely Ingvild asked the question.

"Um, Ms. Rias, can I ask you something?"

"Of course, Ingvild. And please, didn't I tell you to drop the 'Miss'? We're technically the same age." Rias chuckled.

"Y-Yeah." Ingvild laughed as well, but a bit awkwardly around a subject related to her old sickness. "I wanted to know, what...What did it cost my sister to cure me?"

A shiver went up and down Katerea's spine, as she tried to silently went back and forth on Rias's dick.

"A place in my Peerage. Your sister is a powerful and influential person, and I wanted her to work for me." Rias answer without pause or fanfare.

"...Oh." Ingvild said as she slowly processed what her sister had done for her sake. A silence in the room, each occupant thinking on something different.

Ingvild was thinking on what she could do to repay her sister. Rias was silently watching Ingvild with a small smile, while ignoring Katerea so as not to reveal her position, just enjoying Katerea's work on her cock, and watch the drama in front of her unfolding. Katerea was mentally begging Ingvild to leave, while also wishing for Rias to begin her move. The guilt and excitement warring and mixing with her, and in the end spiralling her arousal higher.

"Ms. Rias!" Ingvild said determined.

"Rias." Rias said back admonishing.

"Rias." Ingvild replied shyly and sheepishly, before her determined look returned. "Please add me to your Peerage."

Ah, and there she goes. Katerea sigh in relief and defeat, as she took Rias's dick into her throat, closed her eyes, and used nothing but her throat muscles to get her King off. Ingvild. My foolish, foolish, beautiful, gentle and caring sister. Now you will fall. Just like me.

"Oh Ingvild, I couldn't. What would Katerea say? She would be so mad." Rias said the last part like it would secretly be a funny thing.

"I-I know. I don't want to disappoint her, but...but I don't want her to suffer for my sake." Ingvild said with a sad voice.

"I'm hurt that you think serving me would be suffering." Rias acted mock hurt.

"N-No! I didn't mean it like that. I just meant that, well, Katerea is very proud of being a Leviathan, or being of the bloodline of the Original Satans. Even if she did it for my sake, I think she would feel bad for serving someone else. So I want to be by her side, so she'd know, she won't be alone!" Ingvild quickly explained in panic.

"You really are kind, Ingvild. Fine, your resolve touched my heart. But maybe we should do this tomorrow as Katerea could be back in any minute." Rias said touched by Ingvild's sinceirty.

"Um, can't we do it in secret real quick?" Ingvild copied Rias's hand next to mouth gesture, and whispered mischievously.

"And I take the brunt of explaining things to Katerea. Not even part of my Peerage yet and already putting a lot of work on me." Rias mocked being exasperated, which brought an angel-like laugh from the purple haired girl.

The conversation passed over Katerea's head, as she barely focused on it, already accepting the end Rias descripted to her as an inevitability.

The Devil and Half-Deivl then did the Piece Worth spell which, to Rias's surprise, revealed that she was worth 3 Evil Pieces to Rias.

The Gremory Devil gave Leviathan Devil a Bishop Piece as she felt Ingvild needed higher magical energy to ensure her constitution was stronger soul-wise, and because Ingvild didn't feel like an active fighter, thus giving her a support role for now.

"Ingvild," Rias had stood up, moving up till her pelvis was touching the desk, and in turn hiding her nakedness. If Ingvild where to go around the desk, or even lean over it, she would discover the exhibitionist sex play going on. Yet Ingvild's shy and polite demeanor ensure that she stayed at her side of the desk, only extended her hand to accept the Evil Piece in Rias's outstretched one. Rias took Ingvild's hand, the Evil Piece between their palms. "I want to tell you what I've told your sister."

"Yes?" Ingvild focued on Rias, at her serious tone, and in doing so not looking down and noticing what's going on.

"By taking you into my Peerage, everything that you are is mine." This brought a flush to Ingvild face as how passionate that sounded. "But in turn I will love you with all my heart, wanting for nothing but your happiness, and I will fight for you with all my being, wishing for nothing but your prosperity. You are not my servant nor slave, but my friend and precious my family."

"Ah..." Ingvild was taken aback by the fervour of Rias's declaration. She held a close fist under her chin while looking to the side, unable to meet Rias's eyes. The two stayed like that for a moment before Ingvild gathered her courage, and face Rias again. "Then...then I will do my best to meet your expectations, and stand by your side as someone you can depend on." Ingvild said back with vehement resolve, as she closed her finger around the Bishop Piece.

"Then I welcome you," Rias held Ingvild hand closed around the Bishop Piece and brought it to her lips. Rias kissed the back of Ingvild hand and activated the Evil Piece forever linking Ingvild to her.

Ingvild moaned as the Piece sank into her hand and got to work connecting her soul to her new King.

Rias came inside Katerea's throat, as she had capture both the elder and younger Leviathan sister, making them inevitably hers.

And Katerea silently came in her place, under Rias's feet who was cumming in her mouth, as she was under the desk while her little sister enslaved herself to her monster of a master.

Ah yes, Rias thought. Everything now as it should be.

Rias pulled her lips back and smiled at the blushing Ingvild.

Just as I want it.

"Ingvild Leviathan, my beloved Peerage."

"Ye...Y-Yes, my King!" Ingvild said with a determined pout.

Above in the skies of the Melaketos Island, the rain clouds began to clear, and the sun rays pierced through.