One Piece: That's Ridiculous! Luffy Becomes an Admiral?

No system+Multiple heroines+Plot flow After the Straw Hat Pirates broke into the mysterious sea, they collectively traveled to a parallel world. Here, Pirate Luffy disappeared and was replaced by a Vice Admiral also named Monkey D. Luffy. As the Straw Hats delved deeper, they discovered that there were actually three Luffys existing in this time and space at the same time. ——Pirate Luffy ——Marine Luffy ——Luffy in "ROMANCE DAWN" This book mainly tells the story of Marine Luffy's growth experience.