Seong Soo, a twenty years old boy, decided to move to Seoul after being accepted into Seoul University. However, he was a victim of real estate scam. He then moves into his mother's friend's house. Moreover, it turns out that his mother's friend is a sexy self-employed mother and Seong Soo is attracted to her.
| Actor | Role |
|---|---|
| HHeo Ye-changSeong-soo (성수) | Seong-soo (성수) |
 Hee-jeongJa-yeong (자영) | Ja-yeong (자영) |
 Yeong AhSoo-min (수민) | Soo-min (수민) |
 Kim WoonYeong-cheol (영철) | Yeong-cheol (영철) |
 Jeon Ji-hakTae-woong (태웅) | Tae-woong (태웅) |
 Jo Yong-bokJeong-joon (정준) | Jeong-joon (정준) |
 Kim Mi-naHee-seon (희선) | Hee-seon (희선) |
 Jeon Hyeon-soo[Returning Student 1] | [Returning Student 1] |
 Kim Moon-jong[Taxi Driver] | [Taxi Driver] |