Kunimi Hiro was an ace pitcher in junior high school, until he was diagnosed by a doctor as having a "glass elbow." He gave up baseball and joined Senkawa Senior High School's soccer team. But then something happens that reignites his passion for baseball and he joins a baseball team managed by Koga Haruka. He finds himself in a match against his old friend/rival Tachibana Hideo who has advanced to Meiwa No.1
