Position: Catcher

Akaishi is a childhood friend of Kou and Wakaba and is the same age as them. In part one, he has a crush on Wakaba and is jealous of the time Kou spends with her. In elementary school, he was kept from pitching on his Little League team because he got into fights with opposing teams. He was able to throw a 100 km/h fastball while in elementary school, but Kou could hit a home run off one of his pitches.

His father owns a liquor/sake store.