After her friends Hyun-chul and Mi-jin break up, Se-yeong sets out to find out the reason for their breakup and experiences mysterious occurrences.
| Actor | Role |
|---|---|
 Chun Woo-heeSe-young | Se-young |
 Cho Hyun-chulHyun-chul | Hyun-chul |
 Kim Yong-jiMi-jin | Mi-jin |
 Lee Jin-haYoon-jung | Yoon-jung |
| ssogummJi-eun | Ji-eun |