KoichiandOkuyasuare extorted byTamami Kobayashiwhom wields the StandThe Lock. However, whenJosukeexposes his scam, Tamami flees. Tamami then draws in Koichi's mother and sister, and provokes the hatching of Koichi's Stand intoEchoeswhich can implant sounds into objects and people. When Koichi ma...
Koichi Hirose (広瀬 康一 Hirose Kōichi) is one of the two deuteragonists (along with Okuyasu Nijimura) featured in Diamond is Unbreakable and appears briefly as a minor character in Vento Aureo. Koichi is a timid high-school first-year who befriends Josuke Higashikata and then finds himself...