The Heroine is My Stepsister, and I'm her Final Boss - Chapter 149 - 150: Your Death.

Orlax Tirshtain is the villain in the global game [Unification of Empires]. The tyrannical, cold-blooded emperor is a man who slaughtered his own family with his own hands and ascended the throne with their blood—a power-obsessed madman. Despite five years having passed since the game’s release, no one has been able to defeat this lunatic. So, how the hell did I become this damned?????

The leader of the thousand demons, the Demon God Chun YeoWoon. Due to an unfortunate accident, he had been sent to the distant future.

Meet Jon Dare, your everyday's 25 years old whose life changes (ends) when he played the latest installment of Skyrim, "TESV Skyrim FDVR". He overloaded his game with all the mods he could fit together to the point of his brain getting fried. When he opened his eyes, he was in "Honorhall Orphanage" in the city of Riften. He was reincarnated in his favorite game 19 years before the start of the game’s events. Armed with future lore knowledge; full potential in Magic, Combat and Voice; Overpowered Parents and a Cat; the Nord kid will set out from Riften to find himself becoming a Hero way before the start of the game events.