One Piece Luffy cosplay costume. Monkey D. Luffy is the main protagonist of the popular manga-turned-anime, One Piece. In particular, cosplay costumes and cosplay accessories for the popular Japanese anime and Manga like Naruto, Bleach, Final Fantasy, Chobits, Kingdom Hearts, Sailor Moon, the batman costume One Piece and more are extremely hot-selling in the world’s market of wholesale cosplay clothing and accessories. Costumes for cosplay can cost thousands of dollars in some instances.