Da-bin, who dreams of a normal high school life, helps his younger sister Eun-seo, who is deaf in one ear, get to and from school every day. When he learns that his family may have to move far away for Eun-seo, he applies for an exchange program, hoping to take one last trip with his girlfriend. But when he starts working at a motel to cover the costs, he finds himself drifting further away from his plan.
| Actor | Role |
|---|---|
 Sung Yoo-binDa-bin | Da-bin |
| CCha Jun-huiEun-seo | Eun-seo |
 Lee Seung-yeonKyoung-ok | Kyoung-ok |
| LLim Jae-hyeokJung-won | Jung-won |
| KKang Min-juJae-eun | Jae-eun |
 Lee Yoon-jaePastor | Pastor |
 Lim Ho-junHong Han-ki | Hong Han-ki |
 Ok Yeong JinHui-ji | Hui-ji |
 Park Young-bokMotel Owner | Motel Owner |
| YYang Do-damSpecial Class Teacher | Special Class Teacher |
| HHwang Jin-woonBoy | Boy |
 Lee Dong-giSeung-yong | Seung-yong |
 Kim Sang-wookSchool Guard | School Guard |
| BBang Tae-wonStudent 1 | Student 1 |
 Baek Seung-wooStudent 2 | Student 2 |