Living Room, Azathoth Manor:

3rd Person POV:

Arriving in the living room of the Azathoth Manor, Isaiah's eyes darted around before locking onto the nervously pacing form of Meredith, letting out a subtle sigh of relief as the girl noticed the group of people before rushing over to them.

"Hey, Meri. It's okay." Isaiah whispered as Meredith hugged him tightly, wrapping his arms around her and calming her down.

"I-I was so scared." She whispered back, making him smile softly as he nodded before slowly pulling her back.

"It's fine now. We're here. Samson, Bardou, guard the windows. Issei, Saji the doors. Valerie, create surveillance spells. Kuroka…"

"I know." She said with a smile as she wrapped her arms around Meredith and walked her slowly to the sofas, Isaiah sighing as he turned to his fellow Kings and their Queens.

"Call your peerages here. We'll need all the help we can get."

"…Fine, but you have a lot of apologizing to do, mister." Rias said with a frown before she walked away to go find Asia and Sona followed after her to call her peerages, making him roll his eyes as Akeno and Tsubaki giggled before following after their respective kings.

"Uh, Lord Isaiah. You might want to come take a look at this." Samson's voice came from the windows, Isaiah frowning as he walked over to where Bardou and Samson were staring skywards before his eyes widened at the sight in front of the manor.

The sky was clouded pitch black, hundreds of 4-winged angels with dark wings floating around the sky, each wielding a bident and covered in dark coloured armour. Standing at the front gate was a smiling Kokabiel, his ten black wings out as he waved at Isaiah with a smile as soon as he noticed him.

Next to Kokabiel, Freed was grinning widely as three swords were sheathed at his sides, with the 8-winged Fallen Angel woman and Valper standing next to him.

"…Heh, uh, boss. We're going to need a lot more people than just three peerages." Issei muttered with a nervous smile as he walked over and saw the army, Saji just in silent shock next to him.

"How? We were hidden under so many illusion and suppression runes that it would have taken them weeks to even find us.." Isaiah muttered in shock before Meredith spoke up.

"That old priest destroyed them all. I-I don't know how, but one second my security runes were all functioning and the next, everything was just…gone and they were all waiting outside."

'Did I fuck up the timeline that badly that Valper Galilei, fodder from the canon universe, is actually a threat?' Isaiah thought to himself with a frown before he shook his head, staring out at the army around his manor before turning his head as Rias, Sona and their full peerages walked in.

"What's wrong?" Rias asked with a frown as she noticed Isaiah's frown, to which he just sighed and pointed outside. Rias and Sona along with their peerages walked over before they gasped in shock as they saw the army.

"W-What?! How?! Where are the guards that were supposed to be watching Kuoh Town?!"

"Dead, probably." Isaiah said before turning to Valerie.

"Nothing. I've tried every scrying spell I can and apart from knowing that the swords at the young priest's hip are the Excalibur fragments, nothing else comes up."

"They must be using something to hide themselves from scrying spells." Isaiah muttered before he let out a soft sigh and shook his head.

"Sona, you and your peerage go up to the third floor and focus on supporting fire. Rias, you and your peerage wait on the second floor as back-up. I'll be heading out along with my peerage to see what he wants."

"What?! NO! You're staying in here and we'll wait until my brother or her sister comes!"

"And what do we do when he decides to just attack us?!" Isaiah asked her, Rias just frowning ad he sighed and walked towards her.

"Listen, my one job is to make sure you along with everyone else survives. If that means my peerage and I have to stay back to buy you all time, then so be it. Besides, we both know that only my peerage and I can even keep up with him and his army." Rias's frown just deepened as he smiled and wrapped his arms around her, Rias hugging him back tightly as he chuckled.

"Besides, there's no way I'm going to die to scum like him. Who's going to be making fun of you if I'm not there?" Isaiah said with a smile, Rias giggling softly before they pulled back and she sighed.

"Fine, but if anything happens…"

"Cover you guys and teleport away as fast as I can." Isaiah said with a smile, Rias nodding before she walked out.

"I wish you luck if battle breaks out." Sona said with a smile, Isaiah chuckling as he nodded.

"You too." She nodded as she walked out, her peerage nodding and smiling at him before following their King out.

"If anything happens to you, I'm going to whatever Heaven or Hell you're in and dragging you back here only to kill you again, understand?" Akeno said with a frown, Tsubaki nodding as he chuckled and nodded before wrapping both in a hug.

"You two be careful, okay? I don't want to know what I might do if anything happens to you two." Isaiah muttered as he kissed each of them on the forehead, both girls smiling and nodding before walking out to join their respective kings.

"And what about my safety, hm?" Kuroka asked with a raised eyebrow and her arms crossed, to which Isaiah just rolled his eyes with a smile.

"We both know you're strong enough to fight with me."

"Doesn't mean I have to like it." Kuroak grumbled, Isaiah chuckling as he wrapped an arm around her neck before turning to his peerage.

"Everyone ready for the biggest battle of our lives?"

"Not really, but we'll have to deal with it." Saji said with a shrug.

"Hear-hear." Issei muttered with a sigh, Saji chuckling as he patted him on the back.

"Come now, Saji and Issei! One does not get the chance to fight a God-level being everyday! Let us relish this chance for combat and slay our foes!" Samson roared with glee, Valerie and Meredith rolling their eyes as Bardou howled in agreement with his fellow berserker.

"Hahaha! That's the spirit, Samson! Now, let's go see what these assholes are doing on our turf." Isaiah said with a grin as he walked towards the front door, his peerage following him out as they walked out of the front door and onto the front courtyard.

"Would you look at that? I told you they would be sending him out!" Kokabiel said to Valper with a grin, Valper rolling his eyes.

"I didn't say they would keep him away, my lord. I said that there's a slight chance they're smart enough to keep him hidden away for an ambush attack, though the fact that they did sent him out shows me the level of intelligence they're at." Valper said with a smirk as Isaiah and his peerage stopped a few feet away from him, Isaiah coming to a standstill in front of them as Kokabiel walked forward to stand in front of his group.

"And here I thought you changed after all these years. I guess you're still the same old senile, manipulative cunt as always." Isaiah said with a smirk, Valper frowning slightly in confusion as Kokabiel chuckled.

"Am I supposed to know who you are?"

"The Holy Sword Project. I was your prized experiment." Isaiah said with a smile, Valper's frown deepening before his eyes widened as a grin appeared on his face.

"Well, as I live and breathe. Subject #3213, I never thought you would have survived the purge!" Valper exclaimed with a happy grin, confusing everyone as Isaiah just grinned.

"Oh, I barely did thanks to Lisa, but now, I have the one who killed my entire family right here in front of me." Isaiah said as his grin turned dark, Valper's eyes widening as a Holy-Demonic blade nearly cleaved his head off.

"Now, now, while I'm all for violence and war, I need Valper, so I can't let you kill him. Although, I know that you were strong, but I didn't expect this level of strength from you." Kokabiel said with a smile as his arm strained to keep its grip on Isaiah's wrist, who was straining to cut Valper's head off.

"Go back to your group and cool off." Kokabiel said with a smile as he grunted, twisting and tossing Isaiah back to his peerage, but that was nothing for the King as he simply flipped to the air and landed perfectly.

"You know, next time, at least give us a sign you're going to attack." Kuroka said with a sigh, the rest of the peerage nodding with her as Isaiah gave them an apologetic smile before turning to the waiting Kokabiel.

"So, why are you here? If you wanted to fight, you wouldn't let Meredith contact me when you destroyed the runes." Isaiah said, to which Kokabiel smiled and shrugged.

"I wanted to meet the One Chosen By God." The devils winced at the word God, all of them just as confused as Kokabiel's group as Isaiah frowned.

'Could he be talking about…No, no way.'

"And who is this 'One Chosen By God'?" Isaiah asked with air quotes, Kokabiel smirking as he pointed directly at him.

"You, Isaiah Azathoth. Six years ago, when you were resurrected as a Devil by Rias Gremory, Father's presence could be felt all across the world and we of the Grigori tracked that presence to the southern parts of Italy, where coincidentally, the Holy Sword Project's main laboratory was and where Rias Gremory made you a part of her peerage."

"Well, sorry to disappoint you, but if I was chosen by the OG as you said I am, I would have been given at least one sign of something happening."

"The Lord works in mysterious ways." Kokabiel said with a cryptic smile, Isaiah frowning before the Fallen Angel leader chuckled.

"However, I do have a second reason for appearing in front of you in person."

"And what is that?"

"To tell you that I'm going to destroy Kuoh Town and everything in it.." Kokabiel said with a simple smile, shocking everyone as Isaiah's frown deepened.

"However, I am not a man without mercy. If you wish to stop me, you can find myself and my army waiting for you all at Kuoh Academy, since it's the one place where you all will have the tactical advantage."

"You expect us to follow along with your games after you invaded my home? What's stopping me from contacting one of the Satans and telling them your location?"

"Depends. What's stopping me from calling off us waiting and just killing everyone right here and now?" Kokabiel asked with a raised eyebrow, Isaiah glaring at him as the Cadre smiled and nodded.

"Then, we have an agreement. You have until midnight to come and take me down. If not, I'll assume you wish for Kuoh to be destroyed." Kokabiel said as he walked to stand next to Valper, a teleportation crest appearing under the group before they disappeared, the army of Fallen Angels disappearing with him as the Azathoth group just glared at the spot where he previously was.

"Now what?" Issei asked with a frown, to which Isaiah just stared into space before he turned around.

"We prepare for war."

An hour later:

Kuoh Academy Campus Front Gate:

Isaiah's POV:

"Does everyone understand the plan?" I asked the group of devils, everyone nodding as I smiled and nodded.

"Remember, these guys are not going to spare you, so don't spare them. Kill them the first chance you get and worry about the trauma later, okay?" I said, some of the group nodding hesitantly as I sighed.

"Okay then. Everyone, do a double check if you have everything and we'll meet back here in a few minutes."

"You're a very good commander." Sona said with a smirk, making me smile as I shrugged.

"It's a bit harder than I thought it would be. Honestly, I don't think I'm cut out for all this planning." I said with a shrug, Sona looking amused before Rias spoke up.

"We both know that's a lie. The strategies you came up with while not even knowing everyone's abilities for that long is impressive to say the least." She said, making me smile as I shrugged.

"That doesn't mean there weren't a few points where you two adjusted to better fit everyone. Now, let's just hope the plan comes to fruition perfectly." I said, both Kings nodding before walking to give a last minute pep talk as I took a deep breath.

"Nervous, Lord Isaiah?" I heard Samson ask, turning to see him and Bardou walking towards me.

"A bit, yeah. This is my first actual large-scale battle with a lot of risks and consequences." I said, Samson chuckling as he patted me on the back.

"Haha! Do not fear, Lord Isaiah! If you piss yourself in battle, I'll have a towel and an extra pair of pants ready for your usage. Then you can dry while I take care of the enemy commander." He declared with a grin, Bardou and the rest of the group snicker as I just gave him a dry stare.

"Thanks. I really appreciate it." I said sarcastically, Samson just giving me a sly grin as he chuckled and nodded.

"Do you have a moment to talk, fiend?" Xenovia asked, making me turn with a smile as I saw her staring at me.

"Where's your friend?" I asked and she pointed to the side, where I noticed Irina and Issei speaking to each other.

"She wanted to see if she can't make the fiend under your command change to the Church's side."

"Unless they give him a harem as soon as he joins you guys, that's going to be very hard." I said, Xenovia nodding before she turned to me.

"Listen, I will not apologize for the behaviour we displayed earlier, but I will thank you for saving us from further humiliation and making sure that we did not lose our Fragments to Kokabiel."

"You don't have me to thank for that. Thank Bardou." I said, pointing at Bardou who gave a cheeky grin as Xenovia nodded and turned to him.

"Thank you fiendish mutt for saving us."

"You're welcome, righteous cunt." Bardou said with a bright smile, making me stifle my laughter as Xenovia glared at him before walking away.

"I taught you well." I whispered to him with a grin, Bardou grinning back before he spoke.

"This will be our first battle against a God-level fighter ever since the Kings, right?" Bardou said, making me sigh as I nodded.

"You ready to make Joky proud?"

"Oh yeah~!" Bardou growled with a feral grin and a nod, which I mirrored as I nodded.

Time for a massacre.

A/N: And there we go! The start of the War for Kuoh!

Next chapter is just going to be talking at the start and then…

A whole lot of fighting, so strap in for battle after battle.

As always, read, review, enjoy and until the next one…

Ba-Bye~!