I, Start with a Fantasy Beast Species

Introduction: Carl traveled to the world of One Piece, joined the navy to plan for heavenly gold, and obtained the most powerful devil fruit in history: the Human Fruit, Phantom Beast Species, and Devil Form. From then on, Karl soared into the sky and took charge of the world with a flip of his hand. Garp: "Stop bragging that I am the strongest navy, Carl is!" Warring States Period: "This son has the appearance of a marshal, and the navy should be prosperous!" Kaido: "He is the strongest creature on land, sea, and air!" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.