One-Slash Superman in the Pirate World

Reborn into the world of One Piece as the legendary swordsman Kokushibo Yoriichi, our protagonist wields a blade that ends all battles with a single strike. Admirals? Pirates? Gods? One slash is all it takes. When even Shanks' Divine Avoidance can't touch him, the seas tremble before the ultimate one-hit wonder who's more terrifying than any devil fruit user. No dodging. No mercy. Just one perfect cut that rewrites the rules of power in the Grand Line.