One Piece: The Starfruit

(System story. The protagonist is a pirate and won't be joining the crew. Don't read if that's not your thing.)

Sengoku: "Joshua Helios is already stronger than an Admiral. He's a ruthless criminal!"

Whitebeard: "The title of World's Strongest Man ought to belong to that fellow Helios."

What kind of storm will a shut-in who transmigrated to the world of One Piece after dying from staying up too late stir up? Let's wait and see.

(The synopsis isn't doing this story justice. Please read the novel.)