Koji Hirose

Koji is a Stand User who wields Blue Thunder, a Stand that can generate helicopter rotors on his or anyone else's body. He is the counterpart of Koichi Hirose in the 37th universe and is friends with Rohan Kishibe, Muryotaisu Nijimura, Fukashigi Nijimura, and Reimi Sugimoto. He later befriends Jorge Joestar and assists him with finding Yoshikage Kira.