MTL - Demon Slayer: The Beginning of the Game Opens the Way of Reward for Diligence - Chapter 45

A Heavenly God was transmigrated into a different world right after he died. After arriving in that world, he resides in the body of a handsome young man with a mechanical voice inside his head providing him with missions. It also kept on telling him to brew wine every single day.

Joseph Knox, one of the most prolific and well-known serial killers on the planet.A person considered so demented and manic that even trying to reason with him was believed to be a waste of time. A man so far gone that he seemingly didn't deserve any pity even on his deathbed.So why? Why would a man like him receive a second chance? And why did the world around him seem so familiar?Disclaimer: AU when it comes to some parts of Madara's plan(I'll try to make it make sense at least), and aliens don't exist in this world

In the morgue full of Uchiha corpses, he opened his eyes…

A mysterious voice rang in my ear…

He looked confused: “Saving the ninja world, what’s the matter with me, the remnants of Uchiha?”

- Description from novelbuddy

Nobody thought the end of the world as they knew it would come like this.In a dystopian future, 95% of the population was sent to another universe, one resembling the game Jack had played, “Elder Heir Online”.He would've normally enjoyed such an opportunity, but the company 'DiveCore', from his real world, came along.As long as any of them breathed, his revenge wouldn't be complete.Using his knowledge of the game, and willingness to go through the worst to exact vengeance, he will slowly become what he avoided when he played the game in the real world: a villain.