One Piece: Starting with a Transmigrated Island

[Slow burn, native One Piece power scaling, faithful to the original, no harem]

The protagonist, Su Yuan, is male, 175 centimeters tall, and wears a buzz cut. He looks perfectly ordinary, with nothing particularly striking about him.

Su Yuan: “I’m just an ordinary person.”

Shanks: “Su Yuan has even more clout than I do!”

Whitebeard: “That brat Su Yuan has turned the whole sea upside down.”

Sengoku: “Damn it! Where did this Su Yuan guy come from? Looks like there’s going to be another Emperor on the sea.”

Garp: “Hahaha, Sengoku, that kid Su Yuan is a lot harder to deal with than Whitebeard!”