Overseer_

A man with three expertises, game developer, comic artist, and webnovel author is reincarnated into a chaotic world of his fictions. He's not a protagonist nor he's an antagonist. He is just a nameless extra. As if being a nameless extra character isn't enough, his knowledge of the fictions is only partially useful because there are no storylines that follow the original. "Doesn't that mean I won't have to worry about the endings?" But he's wrong... The world doesn't have a storyline, but that doesn't mean it has no ending. ["The world will end soon"] Every destiny can be altered. And that's what Niveus trying to achieve, altering the world's fate and his life as a nameless character.

Once a third-rate villain. Then, the greatest. Yet, in the end, someone possessed him. After having his body taken away by the Author, Sorath has to spend his life inside the soul realm. While spending his life there, he found out he is a character inside a novel. Seven years later, he witnessed the death of his possessor, his creator, the Author. With the help of the Guardian who has accompanied him for 7 years in the soul realm, Sorath returns to the real world with a flame of revenge for the death of his creator. his fate in the novel, and his past lives. === So, if you expected the MC to be a heartless, cold-blooded, and emotionless villain then you're in a wrong place. However, if you're looking for a cunning, full of scheme, psy war, multi-faceted villain. Then please, be my guest.