One hundred boys, all passionate about baseball, make up the Seidou High School baseball team. In any squad, the Ace stands out as the star player. Aside from the main protagonists, other members strive to claim this role, each possessing unique strengths, weaknesses, and emotional arcs they must navigate to reach their full potential. Ryousuke Kominato is recognized at Seidou for both his impressive fielding abilities and his intimidating aura, despite his small frame. Alongside his partner, Youichi Kuramochi, he forms the backbone of the team's field defense. Youichi is overshadowed by his younger brother, Haruichi, whose admiration for Ryousuke is equalled only by his own athletic prowess. Together with Yoichi's roommate, Eijun Sawamura, the players reflect on their journey to Seidou High.