Milim who was a big fan of One Piece, decided ask rimuru to create the One Piece world and decided to go there with her fellow demon lords! How would octagram fit in in this world that full of pirates and monsters??

Wealth, fame, power, Gol D. Roger the king of the pirates obtained this and everything else the world had to offer and his dying words drove countless souls to the sea marking the beginning of the great pirate era. Join Monkey D. Luffy a boy who ate the Gum-Gum fruit and his twin sister Monkey D. Rimuru a girl who ate the Slime-Slime fruit on their adventure across the sea to search for the one piece. (I do not own one piece or that time I got reincarnated as a slime they belong to their respective owners, I also do not own any pictures and videos that may or may not be used here they belong to their respective owners except for ones i drew myself)