Two and a Half Years at Sea: I Became Invincible

When chemistry student Roger is hurled into the world of One Piece, he inherits the powers of a newly-departed Luffy—but this isn't the black-and-white adventure he expected. Every pirate, Marine, and Celestial Dragon harbors their own beliefs and ambitions, clashing in a sea of contradictions. Armed with dual Devil Fruit abilities and two and a half years to master them, Roger must navigate treacherous waters where allies scheme, enemies evolve, and the line between justice and villainy blurs with every wave. In a world where strength is everything, can one transmigrator rise above the chaos…