Within a dark room we see George working on something at his work table. All the lights were off apart of a lamp near him shining on him as he let out small laughs as he continues working for a bit.

George: Almost done. This will be epic.

He keeps on working when suddenly the lights came on and he was nearly blinded as Nori enter the room and see that he disturb him.

Nori: Whoops sorry George, I didn't know you were in here. The room is dark.

George: Yes indeed now leave, I'm busy.

Nori: What are you working on?

George: Something very amazing.

Nori: Is it something highly dangerous?

George:.......Yes.

Nori: (shrugged) Okay then, I'll leave you be.

He turns off the lights and leaves and once he is gone George continues on working as he continues his small laughters.

(Intro)

(Meanwhile)

We see Irina in the spar bath as she let's out a cute moan as she stretched her body and let's out a sigh as she made a cute smile.

Irina: (smile) This is amazing. No wonder Rias and the other girls say your spar bath place is the best.

Y/n: Yeah they do like it here.

We then see Y/n in the spar bath right Irina as she noticed he isn't phase by the fact she is in the bath with him so she ask him.

Irina: Hey how come your not nervous seeing a girl in the bath naked with you?

Y/n: To be honest I've gone use to it. Disbite being a girls spar bath  whenever I want to take a spar bath, they all come here with me.

Vice: Like a true lucky man he is.

Irina: (giggle) That must be fun. But it is great to see you again, especially seeing how much you have grown. You've grown to be an actual hero.

Y/n: (smile) Thanks and You've grown up to be a pure and good angel.

Irina: (smile) Yeah! Say I have a question about your Vice friend? Does he possess you sometimes?

Vice: Meh not much of interest possession anyone. Apart of Issei.

Y/n: No not really. Although sometimes it's annoying to have someone talking to you all those years.

Vice: At least I give you company!

Y/n: You wanted me to fight someone?!

Vice: Just to show how powerful you are!

Irina: (giggle) I have no idea what you two are saying but I sounds like you two are great friends. I am amazed to see a human bond with his inner demons.

Y/n: Yeah it may seem cool but later on not so much.

Vice: Hey!

Irina: Hey you want to go out?

Y/n: Sure I can call Issei and we can hang out, just like the old times.

Irina: Actually I want to be just you and me. What do you say?

He then blushes a little as he sees what she ment. He clear his throat and reply.

Y/n: S-Sure, I would like that.

Irina: (smile) Awesome.

Vice: Now this is a date for sure!

(Sometime later)

We find the two at a theme park where we see the two going on fun rides as they make some laughs. They soon sat on the bench and chatted and remind each other about their childhoods which they each share some laughs.

They soon play some carnival games, one of the games was a dunking game which Y/n line up his shot and hits the target and the person fell into the water. Irina claps for Y/h which he smiled and soon they get some ice cream and soon left the theme park and find themselves on a hill looking over town and enjoying their ice cream.

Y/n: So Irina, how is Xenovia doing?

Irina: Oh you know the usual stric self. I told her to take a break but she won't listen. We may worship God but it isn't a sin to have some fun right?

Vice: It is.

Y/n: Speaking of God what is being apart of the angels like?

Irina: Very cool. You can have wings that is so beautiful. Me and Xenovia don't have it but I'll be so cute with them.

Y/n: (smile) Bet you will. You'll be a cute angel.

Irina: (smile) Thanks your so kind.

Y/n smiled and soon finish his ice cream and then Irina tells him.

Irina: Hey Y/n? I want to apologise.

Y/n: Apologise? For what?

Irina: For leaving you. I know you've struggled a lot ever since your parents were gone. It must have hurt you even more to see me leave. I was worried that you may hate me when I return.

Y/n: Irina I would never hate you. After all I hoped that one day you come back and you did, your here right now.

Irina: Yeah but I have noticed that you haven't talk to Issei like old times.

Y/n:......Yeah. I mean we still do its just......Issei has his own thing while I have mine.

Vice: In other worlds Issei is a pervert and we should stay away from him.

Y/n: But we are trying to get back together. Besides with you here we can be together like old times.

Irina: Well....that is until I go back with Xenovia.

Y/n: Oh......Well it won't be forever, we'll see each other again. I know we will.

Then Irina smiled as she turn to Y/n and says.

Irina: (smile) You've always filled with hope within you. Maybe that's why I love you so much.

Y/n: (little blush) Same here.

Irina can't help herself as she came over and kisses him. He is surprised but he kiss her back and the two kisses while Vice watches and then turns to the viewer.

Vice: What? You thought this is all about action and sexxy girls?.....Well yes but not always.

Soon the two stop kissing and they look at each other with smiles.

Irina: (smile) Y/n.....I-

BBBBBBOOOOOOOOMMMMMMMM!!!!

Suddenly a large explosion knocks Y/n back and he lands on the ground. He groans a little and soon slowly gets up and looks over and to his shock sees Irina laying on the ground away from him as he slowly gets up.

Y/n: Irina! Irina!

???: What an adorable site. A human falls in love with an angel. How sweet, it disgust me.

Then a figure came down with several black angel wings as a elf like fallen angel appears over the unconscious Irina. This shocks Y/n and soon his shock turn to anger as he quickly pull out his revice driver and place it onto his waist.

Y/n: (angry) Your gonna pay for that!

Barid Rex!

Y/n: Henshin!

Revive driver: BariBari up! My name is! Kamen rider! Rev-v-v-vil! Revi! Revi! Rev-v-v-vil! Revi!

???: Interesting, very interesting. Well then human, show me what you got.

Revi rushes towards the fallen angel and then he leaps into the air as he pull out his Ohinbuster and goes to slash him but he blocks with a holy spear.

Revi leaps back but he then rushes towards him and the two clash while Vice calls in backup as Revi and the fallen angel fought.

He swing his Ohinbuster at him but he blocks his attacks and then just the two enter a blade lock the fallen angel blasted him with lighting making Revi stumble back.

Then he slash at him with his spear before using his wings to blow Revi back. He soon land onto the ground but gets it which impress the fallen angel.

???: I am impress. You rather fight to the death. I cannot tell that you are stupid or brave.

Revi: Who are you?

Kokabiel: My name is Kokabiel and I am the leader of the fallen angels.

Vice: (surprised) Wow so he's the leader of the entire fallen angels?!

Revi: Why are you here?

Kokabiel: (smirk) If you wish to know human then allow me to tell you. From here on out, I will begin a war!

Revi: War?!

Vice: Well that's bad.

Revi: But what for? Why starting a war?

Kokabiel: (smirk) To show Sirzechs and Michael that we, the fallen angels, are the ultimate beings! This war will begin here, the human world snd once this war begins the fallen angels will be the most powerful beings ever!

Vice: Nuh uh.

Kokabiel: What do you mean "Nuh uh"?

Vice: Because we are gonna stop this war and show you who are the ultimate beings and that being me and Y/n!

Kokabiel: (laughter) Don't make me laugh, humans are pathetic and weak, they are not as powerful as us.

Revi: We'll see about that.

Hissatsu Shonin! Barid Rex stampings Slash!

Revi rushes towards Kokabiel and goes to land a strike at him but within a second he vanished only to appear behind him which Revi turns around as Kokabiel was about to blast him with lighting.

Suddenly Irina wakes up and sees this and immediately rushes over and gets blasted by lighting.

Revi: IRINA!

Then she collapse onto the ground as Revi rushes to her while Kokabiel was about to finish them off when he gets shot by Live as he rushes towards them along with Rias and the rest, including Xenovia.

Seeing this he takes flight and tells them.

Kokabiel: Accept your fate human because everything and everyone you love will be no more.

He then flies away as the rest rushed over and sees Irina unconscious.

Xenovia: Irina! What happened?

Revi: Kokabiel attacked us. Irina risk herself to save me.

Issei: (shocked) Crap!

Asia: I'll try to heal her.

Live: We'll take hee to Fenix.

Revi: Right.

(Later)

We see Irina laying in bed still unconscious as Y/n sat next to her as he hopes that she will wake up soon. Then Xenovia enter the room and walks over to them.

Xenovia: How is she?

Y/n: She hasn't woken up yet.

Xenovia: Right.

Y/n:.....Xenovia I'm sorry, I should hav-

Xenovia: No. Its not your fault. Irina would have died protecting someone that she cares for.....and I can't blame her. Right now we have a serious problem and I think all of us need to be ready.

Y/n: Right. Let's do this.

The two head off and leave Irina to recover and then we cut to Kiba at the park and sitting on a swing when a someone came up to him. He looks up and sees Nori as he looks down at Kiba and then Nori tells him.

Nori: Hey Kiba.....we need a talk.

To be continued.................................................