A woman thinks her new boyfriend is “perfect,” but while he is handsome and fun, he says he’s not interested in intimacy. Can she convince him to change his mind?

As a child, Ono Tsubasa saw a Shirato baseball game on TV and was amazed at the Trumpet player in the band playing. Now, in order to play the Trumpet, she enters Shirato High School. There, she meets Yamada Daisuke, a catcher for the baseball team. With each others support, they go towards their dream of playing at Koushien.