The movie is about Minami Kawashima, a high school girl who becomes the manager of her school's baseball team in place of her hospitalized friend, Yuki Miyata. She tries to lead the team to the National High School Baseball Championship by learning strategies from the business book Management: Tasks, Responsibilities, Practices by Peter Drucker, which she mistakenly bought.
Yoji Himuro (Hayato Tani) is a ruthless bully terrorizing the classroom with his buffoons. New teachers (Kunie Tanaka and Mari Atsumi) get assigned to tame him down, but they fail miserably. Yoji continues his no-respect rampage until the school principal brings in a new student, an American educated karate expert Noboru Ohinata (Yuki Meguro), to counter Yoji’s terror!