What happens when a divorcee with one kid has something going on with you, a classic highschool student? This story is about Stephanie Hwang, who is an optometrist  with a 5 year old boy and you, a typical teenager... How you met and how you'll live.

Tiffany is a johnny-come-lately model, has had many boyfriends, she is a dominant showoff, unlike you who is the exact opposite; a new graduated architectural intern. You two met via Kwon Yuri who is your roommate. She is a player, she brings plenty of girls to your dorm room which can be a pain most of the time.   You (Kim Seon-u):     Tiffany: