The southern borderlands of Dragonia were a desolate wasteland that served as a natural land barrier to the Order of the Chief God's military. They were largely desert areas, but a mountain range were also part of the southern borderlands. One thing that these particular borderland areas had in common was that they were poor in natural resources. As a result, they were also lightly populated with small villages being the largest settlements that one could find.

Near the foothills of the mountain range happened to be a patch of desert where a white portal appeared before a large group of exorcists and priests dressed in white cloaks emerged from it. One of them looked around before asking, "Where are we?"

Touji Shidou then answered, "I'm not sure, but it looks like we're somewhere in Dragonia. We were forcefully diverted here when we tried using a Holy Artifact to create a portal that would let us bypass their defenses. I assumed that Queen Deonora interfered with the portal's destination coordinates. As proof of that assumption..."

Three figures slowly appeared in the distance and approached the group. Xenovia recognized two of them as Alto-Eris and Issei, but the third figure was unknown to her other than that it was another Dragon. This one had brown dragon hands and legs while her hair was a dark blue. The only clothing that she wore on her top half that wasn't armor was a sports bra while she wore a set of khaki pants on her lower half. Her armor consisted of a steel breastplate, a shirt of chainmail, a set of small pauldrons on her shoulders, a set of faulds to protect her waist and hips, and a pair of gauntlets on her arms. She also carried a large axe in her hands.

The three of them stopped a fair distance from the church group before Alto-Eris stated, "Warriors of a Church that is not of this world, we know of your intentions of invading Dragonia and slaying its inhabitants. You will not succeed as you have already been diverted here to an area that is lightly populated even by the low standards of Dragonia's southern borderlands. Surrender now and we'll let the lot of you return to your world."

Dulio then shouted as he drew out a sword before raising it into the air, "We will not surrender. Exorcists, let the Lord guide us to victory!"

The exorcists present also drew swords out before a voice then rang out, "Fifty against three isn't exactly a fair fight, but beggars can't be choosers."

Dulio and the exorcists then turned to the left to see Druella along with a group of thirty-six Cursed Swords, three Dark Valkyries, and a Dark Angel with her. The axe-wielding Dragon then stated, "These are much better odds than earlier, but we are still outnumbered. It's about time to thin their ranks." as a feral grin appeared on her face.

"Make sure to not get surrounded to the point where you can't escape them, Eclair." Alto-Eris warned.

The now-named Eclair moved forward and before the church battlegroup could react she decapitated an exorcist. She then leapt back as Issei and Alto-Eris each killed two more exorcists, at which point the exorcists shed their cloaks to reveal their battle outfits. There were only five girls among the exorcists, which caused Issei to narrow his eyes as he remembered his own words about treating them as enemies as he saw that two of the female exorcists were Xenovia and Irina. Two Cursed Swords locked blades with two of the other three remaining female exorcists while the Dark Valkyries brought out a few javelins.

Druella herself frowned as her Cursed Swords joined the battle while Mittellsen stayed near her and proceeded to cast multiple shield spells on the Cursed Swords. The dragon known as Eclair had killed as did Alto-Eris and Issei. After the uplifting of all monsters into their current forms, they were supposed to be unwilling to kill, yet Eclair and Alto-Eris had done so on their own. Deciding that such a discussion could wait until later, Druella unleashed a tentacle of dark matter that sent an exorcist flying for a couple of seconds before he crashed back onto solid ground. This distracted them long enough for Eclair to kill four more of them while Alto-Eris unleashed a wind spell that blew away the cloaks of the deceased exorcists, revealing all of them to have been men.

One of the Dark Valkyries saw an exorcist approaching Alto-Eris from behind and threw a javelin that pierced the exorcist through the heart while the other two threw javelins that pierced though two priests who still wore their cloaks only for them to get pulled out by other priests as their wounds were healed. Issei noticed that the priests had not thrown off their cloaks and that both Xenovia and Irina were staying near a white-cloaked priest whose hands seemed to glow green as it healed the injuries of exorcists who pulled away from battle whenever they got badly injured. He charged towards them and made a kick that Xenovia managed to block, but then he took advantage of her block to use Xenovia as a springboard. This allowed him to leap over her and Irina before landing behind the priest and pulling back the hood of the cloak, revealing a pretty girl with long blonde hair and green eyes. Issei then put a sword to her throat as he restrained her before speaking, "Surrender now, or else she loses her life."

That got Xenovia, Irina, and the other members of the Church to pause before an exorcist shouted, "I shall end you for threatening the Holy Maiden!" He would have moved to attack had Eclair not beheaded the man with her axe. She then asked, "Does anyone else wish to try being a hero and lose their life to my axe?"

Irina then whispered to Xenovia, "Darn, it looks like our enemy has managed to turn things against us."

"Yeah, and with Asia having been taken hostage, our only real choice is to surrender." Xenovia whispered back.

Around the two, the exorcists realized that they wouldn't stand a chance of rescuing Asia due to Eclair being very capable of killing anyone that would attempt it. The remaining priests had a look of defeat in their eyes before Dulio stated, "We surrender."

Alto-Eris then spoke to Druella, "As this incident has taken place in our territory, what happens to these interlopers is up to me. Have any problems with it, you can bring it up with the Queen."

Druella replied, "Very well then, my forces are yours to command. It seems that great magic is protecting them from our energy."

"Alright, all of you Cursed Swords, take these invaders and throw most of them in the dungeons. Their Holy Maiden as well as the main priest will be moved to Nobility cells." Alto-Eris ordered.

The Cursed Swords swiftly restrained the remaining exorcists along with the priests. A few minutes passed by before several large prison wagons that were driven by black-scaled wyverns arrived. The wagons were opened and then chains and leg irons were placed on the priests and exorcists before they were loaded into the prison wagons.

Around three hours later, most of the Church battlegroup were now locked in the dungeons. Touji Shidou had a forlorn look on his face as he remembered what happened once they arrived in the castle where Dragonia's queen lived. Asia Argento, the Holy Maiden, had been taken elsewhere along with Irina, Dulio, and Xenovia while the rest of the group including Griselda Quarta and himself were dragged down here into the dungeons. The cells were cramped since there were four people in each cell, but thankfully they were also clean by the typical standards of a medieval fortress. The cells being cramped ruled out training themselves and there was nothing that they could use to try making an escape in the cells either.

"So... do you think that the Church will send a team to rescue us?" One of the exorcists asked after half an hour of waiting silently.

"Ideally, yes. However, we can't rule out the possibility that the Church will send out Lint to kill us all for failure." Another exorcist answered.

"Oh man, we're totally screw then!" a third exorcist said in a panic.

One of the guards then shouted, "Hey!" which got the attention of all the exorcists before she continued, "Shut up in there, will ya!?"

That got everyone to quiet down until the guard left. Griselda then whispered to Touji, "I can only hope that Xenovia is doing alright."

"I can say the same thing for my own daughter Irina, but we also can't forget about Asia. That poor girl was abandoned by her parents on the doorstep of a church when she was just a baby." Touji whispered back.

"That's true. I have also heard about some unsavory rumors about a Devil who goes after nuns, and Sister Asia happens to be a perfect target for him since she was raised as one ever since the Church took her in."

After saying that, everyone remained silent for about five minutes at which point a guard stopped in front of the cell that Griselda and Touji were in before speaking, "You two, it's showtime. The Queen wishes to speak with you."

The cell door was then opened as two more guards arrived and escorted both Griselda and Touji out of the dungeons. Unlike the Dragai Empire that preceded it and especially the anti-monster states that the Order drew most of their armies from, Dragonia did not go as low as to torture its prisoners. Even knowing that, being locked in the dungeons for even a short amount of time was not pleasant for anyone but the kinkiest of monster girls. As a result, both Griselda and Touji looked quite disheveled as they were brought into the Audience Chamber of the castle.

Meanwhile in another section of the castle, Asia was silently praying for someone to rescue her. She along with Dulio, Irina, and Xenovia had been taken up to the Nobility Cells and stripped of all equipment and clothing save for their underwear and in Asia's case her Twilight Healing rings. While taking their equipment was to be expected since escaping would be more difficult without their weapons, the Wyverns took their clothing as well on the basis that it could be used for suicide attempts. Though none of them voiced it, they had been taught that it was considered sinful for someone to take their own life. Asia was shaken out of her prayers when she heard the door to her cell open and she opened her eyes to see Issei entering the cell before he closed the door. He then said, "I do apologize for taking you hostage in that battle earlier, but it was the only way I saw to quickly end it without senselessly butchering all of your allies or being killed by them."

Druella's voice was then heard saying, "A noble sentiment, but honestly I would have preferred to having her and her comrades all be monsterized after they were defeated instead of having them stew in these cells."

Issei turned to see Druella standing outside the door to Asia's cell. He then asked, "Who are you? I am Issei Hyoudou."

Druella let out a cruel laugh as she opened the cell door before answering, "I am Druella, Fourth Princess of the Royal Makai and leader of the Radical Faction. So you're the one known as Issei Hyoudou? What an interesting young man you are..."

A tentacle of Dark Matter shot out from Druella's shadow and wrapped itself around Issei before a second one began to form. This one proceeded to wrap itself around Asia, and yet Asia was not showing any signs of monsterization nor was Issei entering a state of fascination at what Druella was doing. Issei's left arm glowed before the armored gauntlet returned along with the green gem in its center. Ddraig's head appeared before he then said, "I have no idea what the hell you're trying to do to my host's body or to the nun, but it's not going to work. They are host to a special type of item known as a Sacred Gear that is not native to this world." Ddraig's head then vanished.

That made Druella pause, which Issei took advantage of to attack the tentacle of Dark Matter around him, forcing it to let him go. He then attacked the tentacle that was holding Asia, forcing it to let her go before Issei extended his armored hand towards Druella and shouted, "Dragon Flash!"

A bright red light briefly engulfed the area, forcing Druella to close her eyes long enough for Issei to grab Asia's left hand with his right and run out of the cell with her before running down the hallway as two Wyvern guards dressed in grey form-fitting outfits that had an opening on the back arrived and began to attack Druella. Once they were at the end, Issei stated, "Those two Wyverns are members of the Dreadwings of Dragonia, and they are basically Dragonia's equivalent of a Special Forces unit on Earth. At the very least, they'll keep Druella occupied while we get to the Queen. I was planning to take you to her so that I could convince her to let you live with me instead of being locked up in here. Dragonia's laws allow polygamous relationships and you are a very beautiful girl that I would like to marry, so you'll be part of my harem."

That caused Asia to blush as she replied, "Issei... I'm flattered to hear that you think that I'm pretty, but maybe we should bring Miss Irina and Miss Xenovia along to see the Queen."

Either by coincidence or luck, Irina was in the cell that they were near and asked, "Did someone just say my name?"

"Asia did. I would like to talk more, but we need to move." Issei answered as he opened the cell door.

Three more Wyverns dressed in the uniform of the Dreadwings then arrived along with Xenovia as sounds of swords clashing started to be heard and one of them, a young woman with red hair, stated, "Druella's Cursed Swords are now in open conflict with us, Issei. They wanted to start monsterizing the other exorcists immediately after Griselda Quarta and Touji Shidou were moved out of the dungeons to the Audience Chamber, but we told them to leave the prisoners alone. Evidently, they don't like being told that they aren't allowed to monsterize someone."

Irina then asked as she got next to Issei, "Can we please have some clothes to wear?"

"The path we'll be taking to the Audience Chamber will also bring us to the Confiscatory. Your clothes are there, so once we arrive there you can change into them." A wyvern with light purple hair stated.

The group of seven then left the general area of the Nobility Cells and went down a stairway before going through a hallway. Issei looked around and then said, "It looks like we're near the Confiscatory. I'll keep watch out here in case Druella and/or any of her other followers try to enter."

The red haired Wyvern replied, "I'll keep watch with you, Issei. The name's Rita Renault, formerly from the Theocracy of Lescatie."

"Same here. I'm Alexandra, but unlike Rita here I'm native to Dragonia." The purple-haired Wyvern stated.

As she entered the Confiscatory along with Asia, Xenovia, and the third Wyvern, Irina spotted her outfit and asked, "Have our clothes been tampered with in any manner?"

"They were not. I, Lutaria von Schneider, swear it on my honor." The third Wyvern, a green-haired woman who looked like she was in her twenties, answered.

Mittellsen arrived at the Nobility Cells to see two Dreadwings fighting against her master and proceeded to ask her, "Need a hand, mistress?"

"I would appreciate it, Mittellsen. These Dreadwings of Dragonia aren't just grandstanders like most Heroes from the anti-monster nations who happen to get lucky. The Dreadwings are a credible threat to even someone like me since I earned their ire by trying to monsterize the Holy Maiden Asia Argento along with attempting to turn Issei Hyoudou into an Incubus." Druella answered as she barely dodged a flurry of punches.

"I honestly think that you've bitten off more than you can chew, Mistress. From what I've overheard, the Dreadwings are to be Dragonia's Home Guard unit and have power rivaling that of Heroes from the Theocracy of Lescatie."

"We'll see about that." After saying that, Druella made a tentacle of Dark Matter deflect an attack from one of the Dreadwings. Mittellsen then cast a shield spell on Druella, which caused the two Dreadwings to back away slowly. One of them then said, "It barely matters now. We've already accomplished our objective."

Immediately after hearing that, the two Dreadwings tossed small metal containers that unleashed a cloud of smoke that enveloped the entire area of the Nobility Cells and when Mittellsen blew the smoke away with a wind spell, the Dreadwings were gone and searching the cells revealed that Dulio had vanished from his cell. Druella looked furious as she realized that the Dreadwings had attacked not to defeat her outright, but to delay her long enough to move the prisoners elsewhere. A young-looking petite girl dressed in black sludge-like clothes then arrived and said, "I apologize for the delay, Mistress Druella. Dragonia's on high alert right now and Dragon Knights are moving towards the castle even as we speak along with their husbands."

Druella let out a sigh before she then replied, "We'll head to the dungeons and regroup with my Cursed Swords before making our escape, Kuroferuru. It seems that we won't making any husbands today."

"Yeah, that's true." Mittellsen stated as the three moved towards the stairs. As they headed down, Druella couldn't help but think, 'Those Dark Valkyries... Once they get husbands, I won't be able to command them as my loyal followers anymore.' as her mind went back to a conversation she had with the Fallen God ten months ago.

-Flashback-

Druella was standing alone in an area that resembled a vast cloudy sky. She sensed something and immediately bowed her entire body down before she thought, 'Are you... the Fallen God?'

'Correct, Miss Druella. I am the Fallen God.' The voice of the Fallen God rang through the Lilim's mind.

'Then you surely know of what I am requesting the services of, correct?'

'Ah yes, three of my Dark Valkyries who are currently unwedded... I shall loan three of my unmarried Dark Valkyries to your army until they are able to get a husband, afterwards they shall return here to Pandemonium with them so that they can indulge in their desires.' The Fallen God spoke into Druella's mind before it rang out, 'Astrid, Gunnhildr, and... Black Rose, I summon the three of you.'

Three Dark Valkyries descended from some of the clouds and one of them asked, "Did you call for us, Fallen One?"

"I have. From now on until the point where you get your husbands, I'm placing the three of you under the command of Druella, Fourth Princess of the Royal Makai. Once you have your husbands, you'll be free to do whatever you want with them."

"Finally! I've been waiting since forever for the opportunity to go out into the world and find a man to take for myself." The first Dark Valkyrie replied.

"Watch that tongue of yours, Astrid! Surely you don't want to spend another five years in this timeless place." The second Dark Valkyrie snapped.

The third Dark Valkyrie let out a sigh of frustration as she facepalmed at what was going on before saying, "Gunnhildr... Am I going to have to kick your ass again?"

The Fallen God's voice then shouted into their minds, "The three of you, be quiet!" which caused them to cower for a few moments.

"The three of you will be forbidden from fighting each other while in my service. If you cannot keep your arguments civil, only one of you three will be part of my forces." Druella then stated.

"I... I understand." Gunnhildr replied.

"I'll do my best to help your cause up until I get a husband." Astrid spoke in a cheerful tone.

"It seems that those two have agreed, so it's only natural that I do the same. I am merely known as 'Black Rose' as I currently cannot remember my actual name." The third Dark Valkyrie said.

-Flashback end-

By the time that Druella's mind returned to the present, she had entered the dungeons along with Kuroferuru and Mittellsen. Her Cursed Swords were all sprawled out on the floor and moaning, having been defeated by eight members of the Dreadwings. Druella then looked around before she said, "It seems that I missed what occurred down here, but it's similar to what happened in the Nobility Cells. The prisoners have been moved elsewhere."

"That's true, Princess Druella. Now take your Cursed Swords and get out of the Castle!" One of the Dreadwings stated.

Meanwhile with Issei, Asia, Irina, and Xenovia, they were now in the Audience Chamber of the castle where Dragonia's queen lived along with Touji Shidou and Griselda Quarta, both of whom were restrained by a pair of Dragonian Royal Guards. A dragon woman with long gray hair and golden eyes who had many red scales covering her wings, arms, legs, and tail was seated on a throne in the chamber. She wore a royal red and yellow dress. Issei knelt down and lowered his head as he knew exactly who he was in the presence of: Deonora, the Queen of Dragonia. "Your Majesty." he stated from his kneeling position.

"There is no need for that, Issei. You and the others can refer to me as Deonora-sama." Deonora replied.

"I see, Deonora-sama. I take that you know of events that have occurred recently?"

"Yes. According to the Dreadwings, Druella and her followers attempted to monsterize several members of the Church that we had captured after foiling their attempted invasion of Dragonia. As such, all of them except for Touji Shidou and his daughter Irina, Griselda Quarta and her ward Xenovia, and Asia Argento have been moved elsewhere within Dragonia to ensure that further attempts to monsterize them cannot happen."

"Druella personally attempted to monsterize Asia and I, but her attempt did not succeed." Issei stated before the armored gauntlet appeared on his left arm again. Ddraig's head then projected from the gem in its center and stated, "I might as well introduce myself to all of you. I am Ddraig, the Red Dragon. Anyways, the main reason Druella failed to monsterize my host along with the nun is because the two of them possess artifacts native to their world known as Sacred Gears."

Upon getting a puzzled look from Alto-Eris, the Dreadwings, the Royal Guards, and Deonora herself, Irina then explained, "Sacred Gears are items with powerful abilities. They were created an extremely long time ago in the world that Issei and I were born in by a deity known as the God of the Bible. It might have been possible that he visited this world once before and granted every Sacred Gear the ability to protect its owners from the effects of demonic energy, but nobody has figured if that is truly the case or not as this world and the world that Issei and I are from only became connected recently."

"I see. It does explain why Asia has not transformed already despite being in the presence of not just ourselves, but also being within a Demon Realm and it also explains why Issei hasn't already become an Incubus despite living here for just over a year. Dragonia's territory is comprised of both Bright Green and Dark Demon Realms." Deonora replied.

"As for what an Incubus is, an Incubus is mainly a human man that kept receiving demonic energy, and containing it within his body, resulting in a transformation into a being that's convenient for monsters, possessing superhuman stamina and lust. Under the current concept, monsters are all female beings that only possess demonic energy, so an Incubus, which is male, and possesses both spirit energy and demonic energy at the same time, is not a monster. Ultimately, they're just humans altered by demonic energy." Alto-Eris added.

Issei then stated, "The most common and well-known Demon Realms of this world are the Dark Demon Realms. It's always dark during the day, and the red moon rises at night. The land is coloured with black soil, and ominous blue and purple plants, etc. In Bright Green Demon Realms, the sky is bright blue during the day, and the brilliant light of the sun illuminates the earth. The ashen earth that receives sunlight is covered with green plants.

Compared to Dark Demon Realms, the demonic energy in the air is somewhat thinner and it's just a bit more difficult to grow Demon Realm produce, but most normal crops that exist in the human world to begin with can grow without being distorted by demonic energy, so Demon Realm crops and human world crops are in a state of coexistence. Additionally, the soil of the Demon Realm contains more nutrients compared to that of the human world, so even human world crops are extremely easy to grow. However, on the other hand, animals and ores peculiar to the Demon Realm can hardly ever be spotted.

Most of the Bright Green Demon Realms have an idyllic, quiet atmosphere. This kind of Demon Realm is recommended for couples that want to take it slow while living in harmony and having sex yet only monsters and Incubi can take it easy in these realms, not humans. Even though these bright green Demon Realms almost look the same as the human world, they are Demon Realms through and through on the inside. As previously mentioned the demonic energy in the air is bit thin, but that's only in contrast with Dark Demon Realms. Just like that of Dark Demon Realms, the air and water drives humans mad with lust. The demonic energy is more than thick enough to gradually convert humans into monsters and Incubi.

Other than those with a lot of magical energy such as sorcerers, etc, the average human can't tell these Demon Realms apart from the human world at a glance. There are even tales of those who don't realise that they themselves have become Incubi while living among the Incubi residents who look in no way abnormal. For that reason, it seems that a lot of humans from the Order of the Chief God enter these Demon Realms without realising it and easily change into Incubi and monsters.

Furthermore, there are a few differences from the human realm other than the fact that Demon Realm crops are produced. As in dark Demon Realms, when night falls, the magical energy in the air illuminated by the moonlight glows, dancing fantastically in mid-air. This beautiful light is fainter and weaker compared to that of the Dark Demon Realms, so it looks just like real fireflies, including the way that it floats."

"Whoa... I take it that you learned all this from Alto-Eris, Issei-san? And what exactly is this Order of the Chief God?" Touji asked.

"I did teach him all that, Touji-san. As for the Order, they are the main anti-monster organization in this world. Part crusading religion, part military superpower, and part world government, the Order holds sway over the vast majority of humans in this world; within its territory, worship of the Chief God is done by most people. Obviously, Dragonia's inhabitants despise the Order and view it as a great evil, especially as they have attacked Dragonia in the past." Alto-Eris answered.

"How often do they attack?" Griselda then asked.

"They generally attack at least once every ten years, so it's not too common of an occurrence. The death toll from such attacks have rarely climbed higher than the single digits for either side as we normally monsterize their troops whenever we see them. Because of the many mountains that surround and cover most of Dragonia, we can easily seem them approaching." Alexandra spoke as she entered.

"And as most of you have experienced firsthand, we also have ways of thwarting any supernatural attempts to bypass our defenses." Alto-Eris added.

"At any rate, we now understand that we were wrong in attacking Dragonia. Not only did we not get much information about this country's defenses, the inhabitants are willing to kill in order to protect themselves and their loved ones." Touji stated.

"I'm glad that you came to that realization, but we still need to have some assurance that your Church won't launch more invasions of our territory. Issei, would you mind having Asia Argento, Irina Shidou, and Xenovia Quarta living with you?" Deonora replied.

"It shouldn't be an issue, Deonora-sama. I do intend to marry them so that I can officially form my harem. The three of them living with me will be a start to that." Issei spoke.

"And that will be my verdict. Griselda Quarta, Touji Shidou, you can take the rest of the living exorcists and priests of your church back to your own world, but Asia Argento, Irina Shidou, and Xenovia Quarta have to remain here in Dragonia. In one month's time, the three of them shall marry Issei Hyoudou. The bodies of the deceased exorcists have already been sent back."

In another Demon Realm, specifically in a Tentacle Forest, a Dark Priest dressed in a revealing version of a nun's habit saw that all of her preparations were complete. She then chanted, "O Fallen Ones, please heed my call. Bring to me the foul entity known as Diodora Astaroth."

The magic circle on the ground slowly started to spin clockwise and gradually began to pick up speed as the summoning ritual progressed. Five minutes passed before the magic circle shined a bright orange light that grew to a large sphere for a few seconds before fading away. Once it did, it revealed a gentle-looking, handsome young man with green hair wearing expensive clothing. His eyes were closed.

The Dark Priest then asked, "Are you Diodora Astaroth?"

"That I am. Who might you be?" The young man replied.

"I am Astarte de Armagnac, a Nun who serves the Fallen God."

A tentacle with an eye-like organ observed Diodora and noticed that he was having an erection through his clothes as he spoke, "I suppose that we can have some fun here, Astarte. If you pleasure me well, I might consider adding you to my collection of nuns."

"Is there something that I should know about them?"

"I have broken all of them and made them my servants." Diodora gloated before a thorned tentacle speared him. Then it pulled itself out of his body before another speared him. Then that tentacle pulled itself out before a third one speared him. The third tentacle finally pulled itself out before the first tentacle speared Diodora again.

The process repeated for ten minutes, at which point the thorned tentacles stopped spearing Diodora. The tentacle that had the eye-like organ observed Diodora's body as the thorned tentacles pulled themselves out of his body. He did not move and no pulse was felt. Diodora Astaroth was dead, speared to death by tentacle plants.

A/N: Holy crap, this took a long ass time to write up.