Soyo, a quiet high school student, discovers inline skating. Mesmerized by the elaborate skating skills of Mogi, a member of the group, Soyo joins their team. Soyo's life is gradually consumed by the world of inline skating.
| Actor | Role |
|---|---|
 Kim Kang-wooMoggy | Moggy |
 Chun Jung-myungSoyo | Soyo |
 On Ju-wanJjaeng | Jjaeng |
| JJo Yi-jinHan-joo | Han-joo |
 Lee Chun-heeGap-ba | Gap-ba |
 Baek Jong-hakCF Director | CF Director |
 Choi Jin-hoPD Kim | PD Kim |
 Moon Jae-wonAssistant CF Director | Assistant CF Director |
| LLee Yu-jeongMin-ji | Min-ji |
 Lee Jin-ahWoman in the Park | Woman in the Park |
 Lee Joo-sukSoyo's Father | Soyo's Father |
 Oh Jeong-wonSoyo's Mother | Soyo's Mother |
 Jo Moon-eeTeacher | Teacher |
 Kim Dong-wonSeung-gyo | Seung-gyo |
| KKim Sang-sikLoan Shark | Loan Shark |