One Piece: Sign in at the beginning of the game

Roja found himself transported to the world of One Piece, starting out within Doflamingo's Birdcage. Fortunately, 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 is renowned across the seas for its terrifying flames! 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, he gains even more god-tier rewards. From this moment on, he is the strongest on the seas! ---- •Disclaimer: English is not my native language; I am trying to improve as I write. •Also, the cover image is not mine. I got it from Google. If the creator sees this and wants credit or wants me to take it down, just let me know. •I don't own One Piece or any other characters other than the Oc's. This is purely a fanfiction. *"*"*"*"*"* This is a Translation Alternative names:海贼：开局签到流刃若火 Author: Ni_Bi_Cheng_Feng