One Piece: The King of Kings Reigns Supreme

The male protagonist is the kind of person no one would notice on the street. He is extremely powerful in the world of Pirate King, but has no ambitions and only wants to protect his family. He defeated the Four Emperors, and even the Three Admirals together were no match for him. If possible, I'll turn this novel into an endless series of transmigrations.

This novel and its characters are entirely fictional. Any resemblance is purely coincidental. Do not imitate.