As a prospective pro cyclist, Tsujido Rintaro competes in his first race in the A3 category. Despite receiving coaching from renowned trainer Akiya, jealousy arises among those who hold a grudge against him due to Rintaro's growing fame. In addition to his passion for cycling, Rintaro's desire for success is fueled by the expensive hospital bills for his father, who is in a coma after a tragic car accident. Through unwavering commitment, Rintaro quickly learns about the cutthroat nature of professional cycling.
