Kyousuke, a high school student, skips school to ride his SRX motorcycle to Hakone with his girlfriend, Satou. This trip triggers the story's main events: learning of the white Porsche Cinderella in Hakone, Kenji pursues Kyousuke. Kyousuke's actions directly initiate the central race conflict centered around Cinderella. His relationship with Satou is noted, though specifics remain unexplored.