Sailing the Seas, I Can Upgrade Devil Fruits

Luo Sheng transmigrated to Loguetown in the world of One Piece.

He obtained the Barrier-Barrier Fruit,

unlocked an upgrade System,

and could upgrade his skills and items by spending Beli.

Upgrading the Barrier-Barrier Fruit not only improved his control over its powers,

but also gave it new properties.

Blocking Barriers

Reflecting Barriers

Slicing Barriers

Impact Barriers

Damage-Reflecting Barriers

… A top-tier Devil Fruit user, a top-tier marksman, the world's strongest swordsman, top-tier Observation Haki, top-tier Armament Haki, top-tier Conqueror's Haki!

As Luo Sheng upgraded his abilities, one power after another came to light, earning him a reputation among the powerful figures of the sea as a well-rounded powerhouse!

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