One piece : the mercenary king saga

Jin’s Way of the Blade: One Piece Reincarnated. In the East Blue. With nothing but my past as a mercenary king... and a system named Kikoru whispering in my ear. When Jin wakes up in Shimotsuki Village, the world feels… familiar. Pirates, Marines, devil fruits, and swordsmen who can split mountains — he’s landed in the world of One Piece. Only this time, he’s not here to play hero or villain. He’s here to survive. Armed with ancient martial arts, a lifetime of battlefield instincts, and the mysterious Kikoru System that rewards strength with even greater power, Jin carves his own path. But survival here isn’t about hiding — it’s about becoming the strongest blade on the seas. Training under masters, crossing swords with killers, and facing pirates who could crush him with a glance, Jin’s journey is one of blood, sweat, and relentless resolve. Each battle brings him closer to his dream: to roam the world freely, protect those he loves, and stand above every foe who dares to challenge him. This is the gritty, action-packed rise of a man who refuses to bow — even to fate itself. Expect: 1.Relentless training arcs. 2.System-assisted growth with a twist. 3.Iconic One Piece locations and cameos. 4.A protagonist who kills when he must, but values loyalty above all. 5.Epic blade duels etc........ any many more exciting things If you think the seas are dangerous now… wait until Jin draws his sword.