The Baseball World Cup is approaching, and Gorou Honda is keen to represent his country. However, a minor obstacle blocks his path: the team roster has already been finalized, and he is not included. Still, Gorou is determined to join. He takes on the role of a practice pitcher for the Japanese national team, aiming to showcase his remarkable speed and abilities to the team's manager. Fortunately, Gorou gets the opportunity to prove his value: he must deliver a strong performance in the upcoming practice match featuring the veteran Japanese squad and the young players aspiring to take their places. The World Cup will gather some of the top players from across the world. It will also provide the setting for Gorou's long-anticipated confrontation with his old rival, Joe Gibson.