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 she has an unique taste for men.
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