In One Piece, with the Hawkeye Template

Reborn in the world of pirates, he becomes good friends with Ace, Luffy, and Sabo.

When Ace sets out to sea, he brings Bo Er along.

He is not only the greatest swordsman, but also possesses the strongest Haki and the powers of multiple Devil Fruits. With a human body, he rises to become the supreme emperor of the seas.

Whitebeard: "His strength surpasses mine!"

Red-Haired Shanks: "Bo Er's Conqueror's Haki is every bit as powerful as mine!"

Kaido of the Beasts: "Bo Er used the Tremor-Tremor Fruit and the strongest Haki to beat me so badly I couldn't fight back at all."

Sengoku: "Bo Er, I'm willing to withdraw your bounty. Please stop attacking Marine Headquarters!"

Bo Er: "Whitebeard's old, and Red-Haired Shanks and Kaido run away as soon as they see me. That guy Mihawk only dares to compete with me in swordsmanship. Garp can take a beating, at least, so who else am I supposed to go after?"

Battle is the meaning of life, and death is its only destination.

In the name of Bo Er, I pronounce your death!

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