Jung Ye-Eun, university students Yoon Jin-Myung, Song Ji-Won, Kang Yi-Na and Yoo Eun-Jae share a house. Jin-Myung is busy analyzing and emotionally supporting herself. She suffers from lack of sleep. Ye-Eun is dedicated to her boyfriend, she is clear in what she likes or not. Ji-Won has a personality and likes to drink. Yi-Na is popular due to her look. Eun-Jae is shy, however she has an special taste for adult guys.