Minami becomes the team manager for her high school baseball team after her best friend Yuuki is hospitalized. Keen to support her new team, Minami strives to master the fundamentals of effective baseball management. She sets her sights on Peter Drucker's "Management: Tasks, Responsibilities, Practices," but soon discovers that it is an ill-suited resource for her objectives. Nevertheless, Minami soldiers on and reads the book, attempting to distill its business-minded theories into practical tips for her team's triumph in the National competition.