Marineford War: From the Start, I Gain the Power to Grow Stronger Through Pain

Mu Bai was reborn in the world of One Piece.

From the start, he awakened the abilities of the Hero of Healing from an anime he had watched in his previous life.

Healing, optimization, and degradation.

Combined with the extraordinarily powerful mental strength he gained by being reborn, he discovered that he could wield the power of the Hero of Healing far better than in the original story!

The power of healing let him learn any combat technique from the memories of the powerful people he healed, without the side effects found in the original story!

Glandular optimization used hormones to adjust the body into a perfect state and help it reach its full potential!

Genetic optimization let him imitate the genes of Devil Fruit users and combine countless abilities within himself!

Super degradation: any enemy that he touched died instantly!

And so, a godlike being was born!

The Celestial Dragons, nobles, marines, and pirates all had no choice but to kneel before him!

This novel and its characters are entirely fictional. Any resemblance to actual people or events is purely coincidental. Do not imitate.