I'm Already One of the Four Emperors, and You Want Me to Return to Earth?

After transmigrating into the world of One Piece, Xia Yu becomes one of the New World's Four Emperors and its strongest within just two years. As he leads his crew toward Laugh Tale, the System informs him that the world of One Piece is about to merge with Earth!

When the two worlds merge, nations across Earth are stunned!

"WTF, it's really the world of One Piece!"

"Aaaah! Is that glowing guy Kizaru?"

"Wait, who is this Xia Yu? Holy crap, why are top-tier legends like Shanks, Mihawk, Redfield, Shiki, and Rayleigh on his ship?"

Xia Yu: With the strongest power, I do whatever I want. Anything standing in my way will be defeated. Whoever it is!

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