Chan-seungandAh-yeongmetatanightclub,theyhadahotone-nightstand.Afterafewdays,chan-seungwassurprisedbythefactthatAh-yeongwasajuniorofthesamecollege,buttherelationshipwillremainconfidentialwithinthetwo.Meanwhile,Yoo-jinwhohaslovedChan-seungsincechildhoodenteredthesamecollegetocompleteherloveforChan-seung.OnedayChan-seungmethisidealwomanMin-joandwastryingtoaccomplishlovewithher.Ah-yeongiscoolandsexy,Yoo-jiniscuteandattractiveandMin-joistheidealwoman.WhatthehellChan-seungmakelovewithwhom?