Reki Kyan, a high school student, is obsessed with one thing: skateboarding. When night strikes, he makes his way to "S," an illegal underground race held within a mine in which skaters compete in very risky scenarios. Following a defeat that ends in the destruction of his skateboard and the breaking of his arm, Reki is now incapable of practicing at all. While at work, Reki meets his new student, Langa Hasegawa, a half-Canadian, half-Japanese lad with almost no skating experience. Langa is in severe need of financial assistance. After they are both assigned by Reki's employer to see "S," they find themselves into difficulty and are compelled to participate in a wager that demands Langa to skate in a race. However, Reki is unaware that the mystery transfer student has a trump card that might help him win the race in the most unexpected manner. [Assembled by MAL Rewrite]
