So I found this manga nearly a decade ago where a bunch of "villains" were summoned to this Japanese style room by a goddess.
The reason she summoned them is that she need them to destroy the world or something, I honestly forgot. The first chapter shows the MC killing his hero companions as his revenge as some sort of flash back.
The clue I found is that it seems to be similar to Last Bosses in Heroless Worlds novel with the rogue AI, a mad scientist, a fallen angel, a battle junkie hero, an alien queen and a mutant/abnormal characters described but there is no manga adaptation of said novel.
It has reached to a point that I'm starting to feel like this is some sort of Mandala Effect or even thinking I jumped parallel universes (sounds delusional, I know).
The reason she summoned them is that she need them to destroy the world or something, I honestly forgot. The first chapter shows the MC killing his hero companions as his revenge as some sort of flash back.
The clue I found is that it seems to be similar to Last Bosses in Heroless Worlds novel with the rogue AI, a mad scientist, a fallen angel, a battle junkie hero, an alien queen and a mutant/abnormal characters described but there is no manga adaptation of said novel.
It has reached to a point that I'm starting to feel like this is some sort of Mandala Effect or even thinking I jumped parallel universes (sounds delusional, I know).
