One Piece: I Have a Neptune-Like Clone

Possessing a Neptune-like clone, it keeps devouring Neptune-like creatures late at night, and feeds energy back to the main body to keep getting stronger. Explore the deep sea, the windless zone. Many years later, Klein's physical skills, knowledge-color Haki, armed-color Haki, and Overlord-color Haki have been cultivated to the limit. At this time, he was also known as the 'Navy Killer' and became recognized as the strongest man in the world! In the middle of the book, Devil Fruits are arranged according to the situation. In the early stage, the fruits are punchy and violent. ———————— This book is also called "I Became the Most Powerful General with the help of Neptune-like clones", "The correct use of clones" and so on.