Fallen Dark lord

Failed attack

[scene: Kuoh Academy]

Everyone that could still move was still in the meeting room beside from Rias, Issei, Kiba, Xenovia, Irina, Vali and Berserker. Vali and Berserker were both in the air dealing with the enemies in the sky. The three sword wielders were fighting the enemies on the ground as Rias and Issei went to the ORC club-room to help Koneko rescue Gasper.

The Faction leaders, the Light&Dark Lords as well as Nathanael & Gabriel are still in the meeting room, they are discussing who they are currently dealing with.

Serafall: Who would be attacking us now of all times.

(Y/n): I can think of a few different groups.

Jesus: Well Dark One, who do you think is behind this.

(Y/n): The first group I thought of would be the Old Satan faction.

Sirzechs: That would make sense. The Old Satan faction hated peace, just like Kokabiel, they wanted to continue the war. So they would without a doubt attack all of us as we are in the middle of a peace summit.

(Y/n): The second group of individuals I can think of, is the Hero faction.

Gabriel: That could be possible, with you here my Lord along with the Devil faction they could gather some of their more powerful members and launch an attack. However we dealt with the Hero faction plenty of times before and those aren't the robes magicians from the Hero faction wear.

(Y/n): Correct which leads up to the third group.

Azazel: The Khaos brigade.

(Y/n): Yep, I'm not sure which group it would be, but I'm sure it's one of those three.

???: Very perspective of you Dark Lord.

A devil clan magic circle appeared the group look towards it and recognise it as the Leviathan Clan magic, then the caster can out of the circle showing Katerea Leviathan. One of the three leaders of the Old Satan faction and descendant of the original Leviathan.

Katerea: However the Old Satan Faction and the Hero Faction has joined the Khaos brigade, to achieve our goals.

Serafall: Katerea, what is the meaning of this!?

Katerea: Don't worry, Serafall. Today I'll kill you at this place and take the title of Devil King Leviathan for myself. Then, Ophis will become the god of the new world. It's fine if he's just a symbol. The system, the laws, and the doctrine will be constructed by us. Light Lord Jesus, Dark Lord (Y/n), Michael, Azazel, Gabriel, and Lucifer—Sirzechs, your era is over.

While Katerea was distracted talking about their plan. She was blasted into the sky. Everyone look it see it was (Y/n) who used his dark light magic.

(Y/n): I was getting tired of her. So now I going to finish her.

Azazel: No allow me, (Y/n) there is something I want to test.

(Y/n):......alright She's all yours Azazel.

Meanwhile Rias and her group looked up to see Azazel floating across from Katerea.

Azazel: A descendant of the former devil king leviathan. A desperate monster nearing her end, not a bad opponent. I think I'll treat myself to some Armageddon.

Katerea: Surprise, you don't scare me.

Both then powered up and wiped out all the remaining magicians out. Meanwhile Issei and Rias saw what is happening with everyone else watching. The two fight.