Minami becomes the manager of her high school baseball team after learning that her best friend, Yuuki, is hospitalized and can no longer serve in that role. To step in for Yuuki and assist the team as best she can, she sets out to find a book on managing a baseball team. Unfortunately, she mistakenly purchases Peter Drucker's book, "Management: Tasks, Responsibilities, Practices," which is actually about proper business management. Since she cannot return the book, she decides to read it anyway and attempts to apply its business management concepts to the baseball team so they can go on to win the Nationals.