MTL - SCP Life Diary of a D-class Personnel - Chapter 132 : Mobile Task Force

In regards to the MMORPG Cross Reverie, Sakamoto Takuma boasted an overwhelming strength that was enough for him to be called the Demon King by the other players. One day, he gets summoned to another world with his appearance in the game. There, there are two people that insist “I am the real summon master.” Takuma gets slave-turning magic used for summoned beasts cast on him by the girls –

The end of all worlds approaches.

The Demon King Order harvests lives from all manners of living beings.

Within this darkness full of despair,
A single person escaped from space-time, returned to before the world collapsed, determined to change the fate of the past.

But as time pass, he gradually finds out that the Apocalypse isn’t quite as simple as he thinks…

In Zoroastrianism, the mother of evil gods is the source of all evil and darkness!

Legend? Created six demons of “Malicious”, “Chaos”, “Aging”, “Defection”, “Weakness”, and “Destruction”!

Saigo, who obtained the spirit of the “Mother of Evil Gods” in Hakoten, became the “Supreme Supreme” in the overlord;

Look at the ‘ruler of death’, ‘Void Witch’, ‘Tivat’s Demon God’, ‘The Great Demon of Gensokyo’, ‘Dxd’s Demon’, ‘Creator of Demon God Pillar’ and others;

Xixiang is convinced that he has lived up to the name of the “Evil God”;

That being the case, he would shout out the phrase – God is dead!

- Description from novelbuddy

What got summoned was the world’s strongest sociopath.