Trust me, I thought about it but every other fanfic out there is only about new mc in one piece. Being an ex-marine, he can use advantage of many things. It will get too dark, gory and smutty. Trust me and pls be patient.
Ch 1 Chapter 1: Beginning Of Adventure
One Piece: Greatest Pirate System With Ero Ero Fruit [Hentai/Smut]