He is the leader of the DOA gang, which operates in coalition with Junji Kashiya's Blue Rose. Joey is incapable of feeling pain because of the drugs he takes to cure himself and because of this he will always attempt near-lethal acts, such as dodging a train that is coming into the station at the last second. He had a girlfriend named Yoko, who died tragically, and this memory only haunts him. Joey turns against the Oni-Baku because of a bet he made with Kashiya, participating in a motorcycle race against Onizuka, where he eventually falls and ends up in the sea. His brother rescues him and he seems to understand his mistakes and decides to return to the hospital for treatment.