I Became the Genius Bastard of a Noble Dark Clan

The world has already fallen. Despite being hailed as a genius hero, the protagonist was unable to stop the Blood Demon Emperor, and humanity was driven to extinction. As he dies, he wishes for one more chance to save the world.

His wish is granted, but not in the way he expected.

Instead of returning to his own body, he awakens as Christian, a rogue member of the infamous House of Dark Demons. Worse still, he discovers that history is repeating itself, and the world is once again destined to end in just five years.

Armed with the memories of his previous life, Christian realizes there is only one way to prevent the coming catastrophe. Rather than fighting against the empire as a hero, he must rise to the very top, become the Demon Emperor himself, and stop the devastating war before it begins.

With enemies on every side and an impossible goal ahead, the once failed hero must rely on his brilliance to rewrite history and save the world from destruction.