Su-rin, a high school senior, becomes a detective to gather evidence of her mother Jeong-ae’s affair.
| Actor | Role |
|---|---|
 Kang Chae-yunYang Su-rin | Yang Su-rin |
 Heo Ji-naLim Jeong-ae | Lim Jeong-ae |
 Kwak Jin-seokKwak Jun-hwi | Kwak Jun-hwi |
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Su-rin, a high school senior, becomes a detective to gather evidence of her mother Jeong-ae’s affair.
| Actor | Role |
|---|---|
| Kang Chae-yunYang Su-rin | Yang Su-rin |
| Heo Ji-naLim Jeong-ae | Lim Jeong-ae |
| Kwak Jin-seokKwak Jun-hwi | Kwak Jun-hwi |