In A Darkroom, The doors suddenly Slammed Open as Issei, Rias, Akeno, and Asia suddenly A Bunch of Lanterns Begana Lighting up with Blue Flames, as suddenly Boss Fallen Angel revealed himself, the Shitty Father of Raynare, Kokabiel.

Kokabiel: Oh Look at this, the Baby Seals have arrived.

Rias: We're going to stop you!

Kokabiel: 112.

Asia: You can't do this!

Kokabiel: 220.

Issei: We- W-Wait what are you doing?

Kokabiel: Oh I Just make it A Game to count how many times certain people say things.

Issei: Y-You Bastard!

Kokabiel: Oh My! 12.

Issei: GRRRRR!

Kokebiel: Oh Please You have no idea what you're doing none of you could even beat Me last time! You can't even beat me now!

Issei: You have No Idea what you're dealing with bastard! I have gotten so much stronger than ever before! Let's do this Ddraig! Boosted Gear: Juggernaut Drive!!

His Gauntlet then formed an Armor around him and he then Became A Monsterous Dragon Like Creature!

Issei: You Girls stay Back! I'll Handle this!

???: Don't Forget about me!

Just then you Landed as well next to Issei as everyone watched.

Rias: Wait, what happened to The girls?

Y/n: They Managed to get away but I'm not letting the same thing happen to this Bastard! KAIOKEN X20!!

Y/n: You Ready to fight Issei?

Issei: Hell Yeah, I am!

You both then began to walk over to Kokabiel as he stood there wielding his spear of lightning slowly losing confidence as the two of you continued to walk closer to him.

Kokabiel: Bah Bring it on already I can-

BOOST!!

Issei then Punched him in the face Making him Lose A Few teeth as You Then spinned Kicked him Cracking his Skull, Issei then appeared from Above slamming him into the ground, as you then Began Kicking him in the Ribs repeatedly making him spew up Blood!

You both continued beating the ever loving shit out of him as someone watched from afar.

???: Yeah, I saw that's enough.

He then began to warp reality with his eyes and suddenly Kokabiel disappeared!

Issei: Huh!? Where did he go!?

Rias: Y/n do you have any Idea?

Y/n: I don't know, though... It seems very Familiar. Like... I've seen that before.

Meanwhile...

Kokabiel woke up heavily beaten and Injured only to see Tobi and His one eye staring back at him, as he was Confused.

Kokabiel: Where... am I...?

Tobi: I saved you and your Minions Kokabiel.

Kokabiel: Ugh... Why...?

Tobi: My Master has A Need for you and your powers.