I Can Destroy Planets with My Psychokinesis - Chapter 8: The water is very deep.

A young surgeon, who is struck by a system, embarks on a bizarre journey of life.

Despite being the ruler of a nation, nobody was willing to marry the vicious man with a bloodlust.

Our straight (?) bottom woke up ten years into the future and found himself on the bed of his childhood friend… At the start, the bottom was shocked to his very bones, but he soon quickly accepted this premise and found the whole situation to be rather amusing. Precisely then, the bottom once again went back to his timeline — back to when he and the top were just platonic childhood friends.

I Became Hades, the God of the Underworld from Greek and Roman Mythology