OPRJ: Chapter 1

Ryuya traveled to the world of One Piece, starting inside Doflamingo's birdcage. Luckily, he awakened a sign-in system and received the strongest fire-type Zanpakutō-Ryujin Jakka! "Everything turns to ashes; Ryujin Jakka!" He became famous across the sea for his incredible flames!

Five Elders: "Damn it! Who is this guy constantly obstructing us?!"
Sengoku: "This fellow definitely has a hidden agenda!"
Akainu: "His flames... they actually hurt me?!"
Red Hair: "This person... I must befriend them!"

With each island he signs in at, he receives amazing rewards. From that point on, he's the strongest on the sea!

Main character: Ryuya
Code name: White Dove

Pirate Travel System, Two-Dimensional World.