Great Voyage: Centenary General

My name is Moon, and I am a time traveler. This is the world of One Piece. However, there seems to be something wrong with the time I traveled through. I came to a hundred years before the beginning of the plot. Of course, as a time traveler, I had a system, but it was useless. Later I discovered that with my talent, I could easily stand at the top of the world without using the system. By chance, I also adopted Sengoku and Garp as adopted sons. Later, as I got older and older, when I felt like I was running out of time, a few people suddenly came. They are CP0, sent by Im. I knew Im was hungry for my body, but I didn't expect him to be so impatient. After all, Im has never seen a unique genius like me in eight hundred years. Just when I was about to stretch my muscles and bones, the system finally activated... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.