Won-Sool is an adult man with cerebral palsy. His daughter Jaya is his pride and joy. Jaya though is bullied at school and even worse things happen to her. Won-Sool later decides to get revenge on his daughter's tormentors.
| Actor | Role |
|---|---|
 Kim Jeong-gyunWon-sool | Won-sool |
 Oh Ye-seolJaya | Jaya |
 Hwang Do-wonMin-kyeong | Min-kyeong |
 Kim Saet-byeolHye-seon | Hye-seon |
 Lee Cheol-heeYoo-jeong | Yoo-jeong |
 Park Na-YeBo-ra | Bo-ra |
 Yoon Ra-youngSoon-yeong | Soon-yeong |
 Jeong Ui-cheolTae-seong | Tae-seong |
| KKim Jong-wonHwi-ram | Hwi-ram |
 Kim Jeong-yunSeung-woo | Seung-woo |
 Lee Jae-ahYe-cheon | Ye-cheon |
 Yun Sun-hongPrincipal | Principal |
 Son Mi-heeFemale teacher 1 | Female teacher 1 |
| YYang Hye-kyeongIn-mi | In-mi |