High school hurdler Seo-yeon dreams of going pro, but when her father suffers a sudden stroke, she becomes his sole caregiver, confronting harsh realities that threaten her future.
| Actor | Role |
|---|---|
 Choi Ye-binSeo-yeon | Seo-yeon |
 Kim Young-jaeMun-seok | Mun-seok |
 Lee Joong-okCoach Park | Coach Park |
 Kwon Hui-songMin-jeong | Min-jeong |
 Go Kyung-pyoTeacher | Teacher |
 Bae Yu-ramWelfare staff | Welfare staff |
 Park Choong-seonBaek | Baek |
 Yang Heung-juUncle | Uncle |
| LLee Yu-kyungAunt | Aunt |
 Oh Tae-kyungWoo-sik | Woo-sik |
 Byun Jin-suGi-tae | Gi-tae |
 Sung IlCoach Han | Coach Han |
 Seo Suk-kyuDoctor | Doctor |
 Choi Ye-eunNurse | Nurse |
 Kim Sun-hoaNurse | Nurse |
 Jung Seo-inCaregiver | Caregiver |
| PPark Jae-hanDetective | Detective |