Khaos Brigade

"You don't truly think this meeting will end like this, do you ?"

As Issei expected, Vali will not let him go easily.

"Aren't you listening ? Now we are in a truce, which means we are now allies to each others, not enemies. Why must Crimson and White fight each others while there is a chance for them to make peace ?"

"Look like you don't understand what i am saying. I mean why do you want to be in peace side while you have a fighter's heart"

"I fight for my comrades's sake, isn't that enough for you ?"

As Issei just finishes his word, the place is shaking. Someone attacks.

"What happened ?"

"Look"

In the sky, there are many devils who are monstrous compare to those Issei has known, alongside some magicians and a dark-skin woman seem like their leader.

"Khaos Brigade ..."

"Who are they ?"

"By how human says, they are a huge criminal organization which contain very much criminal from Three Faction and even the outside. And that girl is ..."

"Look who i see ? Not only Sirzechs, but also Serafall. Two fake Satans in the same place, nice day"

"What does she mean, fake Satan ?"

"Her name is Katerea Leviathan, the direct descendant of original Leviathan, also a most wanted criminal of devil race for terrorism the government"

"Perfect chance. Wanna a bet who can defeat more preys than the other ?"

And he just active Balance Breaker to take all the devils down. The Rias's team also goes to the fight, but Issei is ordered by Rias (also Sirzechs) to not fight to keep Vali in check.

"So, who will take care of me ? Sirzechs ? Serafall ? Michael ? Azazel ? Honestly, i don't mind taking all of you instantly, cause i lent power from Ophis !"

"Ophis ! This is bad partner, run or fight !"

"Who is Ophis ?"

"A dragon can easily defeat both me and White"

Okay, first there are two dragons forcing Three Factions to ally to stop them from destroying the world, and now there is a dragon can defeat that two easily. When the hell does the world have too much powerful existences ?