One Piece: The God of Herculean Strength

After transmigrating into the world of the Pirate King, all he can rely on is his own strength.

For the sake of survival and freedom, he keeps growing stronger.

Because once your strength is great enough, you can smash every obstacle to pieces with a single punch.

Don't believe it? Saitama is the best proof.

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