Read One Piece Manga Online / Best & Free Manga Online in High Quality. One Piece (Japanese: ワンピース Hepburn: Wan Pīsu) is a Japanese manga series written and illustrated by Eiichiro Oda. It has been serialized in Shueisha’s Weekly Shōnen Jump magazine since July 22, 1997. and has been collected into 94 tankōbon volumes. Enter Monkey D. Luffy, a 17-year-old boy…