At Sea: Knowledge Determines Destiny!

Tenma Ryuichi transmigrates to the world of One Piece and obtains a System that makes him stronger through knowledge.

"As the saying goes, books hold houses of gold and beauties. They also hold sturdy ships, heavy guns, Gatling guns, and atomic bombs! Indigenous people, get a taste of the power of future technology!"

Akainu: "That guy's ship surpasses Pluton. It's a new Ancient Weapon!"

Kizaru: "Two Admirals and a Buster Call were all beaten by him. He's the new overlord of the seas!"

Rayleigh: "If this kid survives, he'll be the next Rocks! No, he'll surpass him!"

Vegapunk is left reeling: "Impossible! These are future weapons I designed. How could anyone design them in the present? It can't be!"

Tenma Ryuichi: "There's nothing knowledge can't solve. If there is, it just means you don't know enough!"

This novel and its characters are entirely fictional. Any resemblance is purely coincidental. Do not imitate.