After graduating from high school, Gorou Honda aspires to become a professional baseball player. Instead of settling for the Japanese Baseball League, he sets his sights on America, the birthplace of his beloved sport, aiming for the Major League. Upon arriving, Gorou discovers the daunting speed, strength, and determination of Major League players, propelling him to push beyond his limits. To bridge the gap, he embarks on a challenging journey through the Minor League, where fierce competition awaits him. As Gorou navigates the unfamiliar American culture, he faces a test of endurance and determination, striving to earn his spot in the prestigious Major League.