I'm the Mysterious Leader of the Salvation Organization - Chapter 546:

Doomsday Online has descended, reducing the entire Earth to a ruined playground. It is occupied by countless terrifying monsters.

“My daughter will kill me.”A poor man, exhausted and overwhelmed by debt, dies and finds himself in his favorite novel as Arzoth Draven—the character he despised the most. Arzoth Draven is the infamous prince who constantly tries to undermine his brother, Evren Draven, the story's main protagonist. He abandoned his illegitimate daughter in a basement, only to be killed by her years later. Now, having transmigrated into the role of Arzoth Draven, can he avoid this grim fate? And on top of that, he also possesses a system.

“21 days. 7 hundred million won. 29 strangers. One unforgettable man.” Yoon Ji-won never planned to become a substitute driver. He never planned to be locked inside a building for 21 days with 29 dangerously attractive men. And he definitely didn’t plan to have his world turned upside down by a smooth-talking younger guy who won’t leave him alone. After a mysterious interview, Ji-won is thrown into a secretive, high-stakes project with an offer too tempting to refuse. The rules? Obey. Stay. Survive. But when he meets “Number Three,” everything starts to unravel. Cold stares. Lingering touches. A spark that turns into a fire he can't put out. Is it destiny? Or just another trap? For readers who crave intense power dynamics, isolated tension, and twisted attraction wrapped in a sleek, modern BL thriller.

The strongest Demon Lord dies, and reincarnates as a human. Not only that, he because of various incidents turns into the hero’s best friend.

Follow his journey as he tries to help the hero escape his fate, and on the sideline to conquer the continent while he’s at it.