Rias and the rest of the ORC were making a plan with the student council. 

I of course was busy thinking how I am going to slowly kill Kokabiel.

Rias: Your going to join us right Y/N.

Y/N: Hah. If anything your joining me.

Issei: Don't be like that bro. We got to work toge-

Y/N: Let me stop you right there. I understand that this is devil territory. But let me make this clear, Kokabiel is mine.

Issei: R-Right.

Asia: I don't think you should fight him alone though. I don't want to see you hurt. Please!

Shit! She's doing that puppy dog face.

Y/N: F-Fine.

Issei: Really?

Y/N: I sense more than one being besides Kokabiel and that priest. You guys should be able to take it. But ill be the one who fights the 10 winged shit. Grab on.

Issei: What do you mean?

Y/N: I mean everyone coming with me put a hand on me.

Everyone grabbed on. But one put there hands in a hell no zone.

Y/N: Somewhere besides there Akeno.

Akeno: Fine. But I must say I liked what I felt.

Asia: N-Now's not the time for that.

Akeno: Fine. But later I want another feel Y/N~

BEGONE THOT!

Y/N: Lets just go.

I instant transmission over to where I feel Kokabiel.

(3rd Person POV)

Y/N and the Gremory Peerage appear before Kokabiel and Valper, who was merging the holy swords.

Kokabiel: How long until it is done Valper.

Valper: No more than five minutes.

(Standard or DBZ time. If DBZ then I don't think this will be one chapter.)

Kokabiel noticed Y/N and the others. Not even turning to speak. He simply watches the Excalibur's merge.

Kokabiel: Gremory, is Sir Zechs  coming? Or perhaps Serafall?

Y/N: Actually. Your killer is already here.

Kokabiel: We will see who kills who after the ritual is done. For now, I brought my pet for you to play with.

A three headed beast appeared in front of Kokabiel.

Rias: Cerberus! He is the gatekeeper of hades, how did he bring this to the human world!

Issei: That thing looks pretty tough.

Y/N: Well you guys can handle that. I have to kill a bitch.

Y/N then flew at Kokabiel charging up.

The two clashing caused a shockwave that disturbed the battle the Gremory Peerage was facing. Y/N using his martial arts to push back Kokabiel.

Kokabiel: I know you tricks! I've been training for this moment!

Y/N: What!

Kokabiel then started to match Y/Ns movements. Soon Y/N was being overwhelmed.

Kokabiel: Take this!

Kokabiel unleased a magic attack which crushed Y/N, only leaving a crater.

Xenovia and Kiba finally made it. Akeno finished of Cerberus with her lightning. Seeing Y/N nowhere, the Peerage panicked. Rias launching a boosted Power of Destruction attack.

Kokabiel: Heh, almost as strong as Sir Zechs. So this is the power the Red Dragon can bring out.

Valper: Its done! The Ritual to form the holy swords is now complete.

Kokabiel: Freed!

Freed: Yes boss?

Kokabiel: Just for fun. How about you show these devils the power of this fused Excalibur.

Freed: I cant wait to chop up these devils to tiny little pieces.

Xenovia and Freed started fighting while Kiba engaged Valper in...small talk?

(SERIOUSLY JUST STAB HIM!)

Valper: Go ahead and take it! We can mass produce higher quality ones any way.

Issei: You sick bastard.

Though Kiba started emitting a strange light. It formed people, those who had died in the Holy Sword Project. By hearing his comrades final wished Kiba ascended,  achieving a power Ddraig describes as Balance Breaker.

Kiba: Ill create a sword made of both Holy and Demonic power. This is the Sword of Betrayer! Lets see if you can stop it!

Valper: Freed! Get over hear.

Freed came to Valpers aid. Though was taken out by Kiba and Xenovia using his new Balance Breaker and Durandal. 

Valper: If holy and demonic powers are able to do something so impossible then God and the Devil King must-OOF!

Valper got impaled by a spear of light from Kokabiel. 

Kokabiel: He was quite the genius. Though he figured out something he shouldn't have. Now that Y/N is gone I can start the war again! It should quite easy since your masters are gone.

Rias: What do you mean.

Kokabiel: I mean God and the Four Devil Kings died in the War

Xenovia: That cant be true..

Asia fainted upon hearing the news. 

Kokabiel: Now that's out of the way! How about I kill you already!

Issei: What's that in the sky!

Kokabeil: Impossible! How did I not notice!

In the air was Y/N holding a giant dark pink and purple orb.

Y/N: I could kill you without using this, but I want to look cool for my lady.

Kokabiel: I killed you! You shouldn't be alive!

Y/N: Instant Transmission is a bitch. Now take this, SHOCKING BALL!!

Issei: Guys I think we should run!

Rias: No time get in the circle!

The Gremory Peerage barley escaped the explosion. The shield surrounding the place broke sending a shockwave across Kuoh.

Y/N: I think that was a bit much.

All that could be seen is a crater with the entire school gone.

Y/N was about to head home but was stopped as he felt a rather strong presence.

From a portal came out a person in a white suit of armor with blue wings.

Vali: Seems like I wasn't needed. If I knew you were here I would have had Azazel just send someone to pick up the remains.

Kokabiel: I-I w-wont give s-so

*Blast*

Y/N: Oh shut up!

Kokabiel finally fainted. Y/N was about to finish him off though Vali stopped him.

Vali: Azazel wanted me to bring g him back alive Y/N.

Y/N: You can go tell him I don't care.

The pressure the two were giving off was enough for one to kneel.

The Gremory Peerage returned, behind them were the student council. They were going to talk to Y/N but immediately felt the pressure the two were giving of.

Vali: Care to settle it with a quick spar.

Y/N: I would love to but..

The pressure Y/N was giving of faded as he walked over to the other students of Kuoh Academy.

Y/N: I think ive caused enough damage as it is. But ill hold you to that spar next time. As for Kokabiel, just take him. Though I will take this!

Y/N lifted up the throne Kokabiel was sitting in before the fight started.

Y/N: And do this.

Y/N then blasted Kokabiel in the.. geez.

Y/N: I think I found my gift for moms birthday Issei!

Everyone was to afraid to question Y/Ns motives so they just went with it.

Issei: AUGH! NOW I GOTTA FIND SOMETHING ELSE!!

As Y/N and Issei were talking about how their gift is going to be better Vali then proceeded to take Kokabiel and Freed.

Ddraig: Were you going to ignore me white one.

Albion: Your alive Red One?

Ddraig: I've been wondering when we would meet again.

Albion: As have I. We are still destined to fight, it is inevitable.

Draig: Lets meet again soon, Albion

Albion: Yes we should, Ddraig.

Issei: Wait a minute! How the hell are you!

Vali: If you wish to understand then you will need more power. Get stronger my rival. As strong as If not stronger than your brother.

Y/N: Id rather die then let Issei beat me in a fight.

Vali then left in a flash of light.

 Y/N: If Issei knew how strong Vali is going all out then he would totally shit his pants.

Issei: Shut it you!

(Y/N POV)

After Kiba got his ass beat we all went home. Well, except for me since I helped with repairing the school since I kind of vaporized it.  returned late in the morning. Opening my door I see Asia sleeping in my bed.

While I do enjoy a good nap on hard wood I think ill take what's behind door number two. Being lazy I just transform my clothes into sleep wear and lay next to Asia. I would kind of stress out over sleeping in the same bed but I was too tired for that.

Though before sleep succumbs me I feel like im forgetting something.

(Meanwhile in hell)

Whiskers: I seriously hate my life right now!

Random Beast: GROWL!

Whiskers: Fuck this shit! I wont die like this! LISTEN HERE YOU MUT! YOU WANT SOME OF ME, THEN COME GET SOME!!!!

The small mouse like animal and the rather huge dog like wolf then ran at each other ready to fight.

(Try and guess where Whiskers ended up!)