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Roja found himself mysteriously transported to the world of One Piece, landing right in the midst of Doflamingo''''s Birdcage. But luck was on his side—he activated the Sign-In System and obtained the legendary heat-type Zanpakutō, Ryūken Wakahara! "Everything in the forest turns to ash, and the blade burns like fire." This blade, with its terrifying flames, quickly became renowned across the seas. The Five Elders: "Damn it, who is this person who keeps hindering us?" Sengoku: "This guy must have some hidden agenda!" Akainu: "His flames... they can actually hurt me!" Red-Haired Shanks: "This person is definitely someone worth watching!" As Roja continues to sign in across various islands, his adventure becomes even more thrilling and unpredictable. Join Roja on his epic journey as he faces formidable foes, uncovers hidden secrets, and leaves a blazing trail of legend in his wake! ----