Transmigrate to One Piece: The Sign-In System Unlocks an Unbeatable Path

[System] + [Greatest Swordsman] + [Devil Fruit] + [Invincible]. Mark transmigrates into the world of pirates, armed with a sign-in System, and sets sail from the East Blue.

He quietly signs in at various locations, steadily growing stronger. He makes his mark in the first half of the Grand Line.

In the second half, he roams without fear. Pirate powerhouses from every corner and the Marines' top fighters all become targets for Mark to challenge.

Watch as Mark uses the power of sign-ins to forge a legend across these vast, turbulent seas, reach the summit, and make the world witness his illustrious name.