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 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. Eun-jae is timid, but has a unique taste for men.