Yirim lives to beat Kang Siheon, the undisputed star of the race track. Known as "King Cobra" for his lethal precision on the road, Siheon seems completely untouchable. That is, until Yirim catches a glimpse of his secret. Armed with shocking new information and a sudden, uncontrollable curiosity, Yirim finds his rivalry taking a turn into uncharted territory...