Mikoto Shinozaki, a sophomore in high school, is timid and of short stature, frequently becoming a target for bullies. However, Fukazawa Yuki, a girl Mikoto admires, recognizes a powerful inner strength lurking underneath his reserved demeanor. Seeking to support the school's burgeoning cycling club, Yuki introduces the sport to Mikoto and encourages him to consider joining. She is convinced that Mikoto possesses a unique sense of drive that would make him an exceptional cyclist. Will cycling enable Mikoto to grow both materially and personally?