After Jae-won goes back to school, he can't find a place to stay so he ends up renting out a room in his mother's friend Hee-jae's house. Hee-jae's daughter Yoon-young has grown up to be a mature young lady. One day, Yoon-young uses school exams as an excuse to stay over with her boyfriend and Jae-won brings his girlfriend to the house. Hee-jae thinks something is going on and interrupts.... see more