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.
Heo Ye-chang
as Seong-soo (성수)
Hee-jeong
as Ja-yeong (자영)
Yeong Ah
as Soo-min (수민)
Kim Woon
as Yeong-cheol (영철)
Jeon Ji-hak
as Tae-woong (태웅)
Jo Yong-bok
as Jeong-joon (정준)
Kim Mi-na
as Hee-seon (희선)
Jeon Hyeon-soo
as [Returning Student 1]
Kim Moon-jong
as [Taxi Driver]
