Eri Hayami is a high school student and the sister of Tohru Hayami, a skilled street racer known as "The White Wolf." Her connection to Tohru places her within a world of racers and automotive enthusiasts. Eri becomes a target and is kidnapped by a group of bullies led by Hebijima. This abduction happens during a street race between her brother Tohru and Ken Ferrari, a Japanese-Italian F1 racer-in-training. Her kidnapping forces Ken and Tohru to abandon their competition and unite in a rescue mission. Eri's role centers on this incident, acting as the catalyst that brings the two rival racers together.