Sakai Hoshiko, Coach Ukai's daughter moves from Tokyo to school at Karasuno. She makes lifelong friends after she joins the boys volleyball team as a manager. She dreams of making it big one day by participating on the Women's Olympic volleyball team.

Ushijima figures out he fell in love with the crazy Tendou, but he is scared to say anything. Keeping everything inside, hoping nothing spills out of his overfilling heart.