One-Punch Justice

For some reason, Teacher Saitama from the world of One-Punch Man transmigrates to the world of One Piece.

In this colorful world, where evil lurks around every corner,

the presence of heroes brings light to ordinary people.

Justice will be served!

Whether they're pirates or marines,

anyone who commits evil must be punished!

Special note: He will transmigrate to other worlds later, but no matter the setting, Teacher is invincible.

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