In high school, Rintaro Tsujido burned with passion for road racing. However, when his father caused an unexpected accident, Rintaro needed a large sum of money for medical treatment, leading him to choose the path of keirin racing. Over time, he became captivated by the allure of keirin and set his sights on becoming a top rider faster than anyone else. He achieved three consecutive victories in the A-class races, proudly earning his promotion to the S-class riders. However, the barrier of the S-class proved to be higher than he imagined...