After graduating from high school, Gorou Honda aims to become a professional baseball player. His aspirations go far beyond joining the Japanese Baseball League, leading him to decide on moving to America, the birthplace of his beloved sport, to play in the Major League. However, Gorou discovers that Major League players are significantly faster, stronger, and more driven than he is. Nevertheless, he remains eager to catch up. To achieve this, Gorou must first navigate the Minor League ranks, where many skilled players compete in the grueling climb toward the Majors. Gorou realizes he must adapt to the stark differences in American culture and push himself to new extremes as his race to join the Major League begins.