Rebirth in One Piece as Deputy Captain - Chapter 503

Lou Yi arrives in this complex world, becoming a penniless and helpless woodcutter. One day, he and his fellow woodcutters are attacked by a tiger when working and one of his friend gets killed. Lou Yi manages to pull himself together and wants to carry his friend's body home.The moment he touches the body, a line of semi-transparent text appears suddenly before his eyes: “Energy +1, absorb it?”

Sky is not born of Shen Huan, millennium is like night.

This is a rebirth who wants to release himself, and has an interesting life story after getting a less serious system.

- Description from Uukanshu

Protagonist travels between different anime worlds to right wrongs and uncover his reason for being along the way.

Seven days remained until the countdown to genetic mutation.Seven days later, all creatures on Earth would undergo mutations. Giant mutated creatures would swarm and attack humanity, putting their fate in jeopardy. The entire Earth would be ruled by these mutated beings!Yang Xiao accidentally walked into a genetic store where various gene potions were sold, capable of altering human body functions.From that moment on, he embarked on a crazy journey of genetic evolution.