Stigma Effect - Chapter 11: Reminiscence

Ukei Kaito fought a desperate struggle in order to fulfill his role as a summoned hero. He defeated the Demon Lord and saved the very world, only to meet an end filled but with betrayal. The companions that he’d trusted throughout his journey betrayed him and killed him by sticking a blade through his chest.

How would you react to waking up in a completely new body—one pulled straight from a game you used to play?That’s the unexpected reality our protagonist, Licht, now faces.Trapped in the body of a character he once defeated and killed, Licht inherits not just the appearance, but the karma of the original. Branded a villain, he’s burdened with the consequences of sins he never committed.As a first-act antagonist in the eyes of the world, his fate is already written: to be exposed, condemned, and destroyed.But Licht refuses to accept that. He chooses to fight. To survive.Karma of the past be damned.Yet the deeper he falls into this world, the clearer it becomes—this is no game. It's darker, more twisted, and far less forgiving than anything he’s ever known.This isn’t a hero’s journey.This isn’t a warrior’s rise.This is a villain’s survival.

He is a young man without a spirit root. It is believed that this denies him the chance at cultivation. However, a mysterious lady imparts a Supreme Demon Classic to him and from then on, he starts his path of cultivation.
He undergoes a total transformation to emerge as the most fearsome and powerful fiendish demon in his era, that even immortals and fiends are fearful of him, and saints are at his beck and call.
Mastering the Supreme Demon Classic is the turning point in his life. He is able to unleash his immense and divine power from within, illuminating the entire universe!

- Description from Novelupdates

Fate is a funny thing.