University students Yoon Jin Myung, Jung Ye Eun, Song Ji Won, Kang Yi Na and Yoo Eun Jae share a house. Jin Myung is busy supporting herself financially and studying. She suffers from a lack of sleep. Ye Eun is devoted to her boyfriend, she is clear about what she likes or not. Ji Won has a bright personality and likes to drink. Yi Na is popular due to her beautiful appearance.