A girl buys the wrong book about management and accidentally turns her high school baseball team into a case study in organizational theory. She's not trying to be clever about it, she's desperate to save a season for a friend who can't be there. That collision between Peter Drucker's ruthless efficiency and the messy, emotional reality of teenage baseball is the whole show, and it works because neither side ever fully wins.

Minami, a second-year high school student, takes over as manager of the baseball club after her close friend Yuuki is admitted to the hospital. She has no idea what a baseball manager actually does, so she heads to a bookstore for guidance. By mistake she comes home with Peter Drucker's book on management, which is about running a business rather than a sports team. Unable to return it, she reads it anyway and sets out to apply its business ideas to the team, aiming to take them all the way to the Nationals. The story is a sports drama adapted from Natsumi Iwasaki's business novel.