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.

• Four Seasons of Younghwasa
• Heo Ye-chang
• Hee-jeong
• Yeong Ah
• Kim Woon
• Jeon Ji-hak
• Jo Yong-bok
• Kim Mi-na
• Jeon Hyeon-soo