Momonosuke is a young samurai boy who's the son of Kinemon. He ate the man-made Devil Fruit that transformed him into a dragon.
Momonosuke is a supporting character in the One Piece series that was created by Eiichiro Oda. The series first began serialization in Shueisha's Weekly Shōnen Jump on August 4, 1997. He would later appear in the Punk Hazard Island Arc that began in Volume 66.
His first appearance was in One Piece Volume 69 CH. 684 "Stop It, Vegapunk!", and his first anime appearance was in One Piece - Episode 610 "Fists Collide! A Battle of the Two Vice Admirals!". No voice actor has been announced for this character. His character in the Japanese series is voiced by Ai Orikasa, and the U.S. dub produced by FUNimation has yet to be announced.