One Piece: Straw Hat Blade

Byakuya traveled to the world of One Piece and was adopted by Maginot of the Windmill Village, becoming his brother who was half a year older than Luffy. He awakens with the silent sign-in system. Only by boarding Luffy's ship can he receive the supreme reward, a long meteorite sword that surpasses the supreme sword, and perfect sword mastery, allowing him to have the navy headquarters' rear admiral level combat power when he goes to sea. He doesn't eat Devil Fruits, and has hidden special skills. He is usually humorous and talkative, and loves to watch the excitement. He only works as the sixth man behind the scenes, secretly protecting the team and making up for the damage. He never takes away from Luffy's home field. Only when he encounters top enemies such as General and Shichibukai, will he draw his sword and show his true edge. Under his secret guidance for many years, Luffy, Ace, and Sabo have grown far beyond the original characters since childhood and have unlimited potential. When he was seventeen years old, he went to sea with Luffy, from Windmill Village to Shields Town, conquered the three-sword swordsman Zoro, met the genius navigator Nami, and gradually assembled the Straw Hat Gang. He distributed the treasures obtained by signing in to his partners, allowing the strength of all members to rise step by step, far exceeding the level of the original work. Breaking into the Great Line from the East China Sea, passing through Sky Island, Judiciary Island, and Chambord Islands, and retreating from General Kizaru with his strength. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.