Fashion designer Soo-yeon (Seol Hyo-joo) is an attractive andtalented as well as sexy woman who is always working and doesn’t care formarriage. Then one day she suggests to her boyfriend, Cheon Tae-pyeong (BaekGeon-sik), to live together on a contract. She writes down the conditions of acontract that involves the fact that they sleep together once a week. Then oneday, Yoon Min-woo, a wealthy plutocrat who used to be Soo-yeon’s boyfriend,shows up and he tells her he wants to start over with her. She hides the factthat she’s living with Tae-pyeong and dates Min-woo. Tae-pyeong soon sensessomething’s up when Soo-yeon starts arriving home late and refuses to have sex.Soon after, Soo-yeon breaks up with Tae-pyeong and asks Min-woo to marry her,but she can’t help but feel something missing inside her…