Nanpei Aoba is a third-year student at Kakyoin High School and a runner for the school's Stride club, serving as its captain because he is the sole remaining member from the previous year's team. His background as the only veteran places him in a position of responsibility, anchoring the club's leadership. Personality-wise, he is very honest and possesses a strong competitive spirit, a trait he shares with his teammates. His primary motivation is to lead his team to victory in stride competitions, driven by loyalty to the club and a desire to uphold its legacy. On the course, his notable abilities are blocking and endurance, making him a reliable and steady runner during races. Key relationships include his role as captain to his teammates, guiding them through his experience, though specific bonds are not deeply explored. Development is subtle, focusing on his steady dedication and growth as a leader as the team progresses through the season.