Biyo is a young boy who was kept captive on Punk Hazard Island.
Biyo 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 manga appearance was in One Piece Volume 67 CH. 660 "Royal Shichibukai Trafalgar Law", and his first anime appearance was in One Piece - Episode 583 "Save the Children! The Straw Hats Start to Fight!".