Lee Mi-na

Sang-min's girlfriend Eun-jeong, is a nude model and takes photos with a stranger in a motel naked. Sang-min who doesn't believe in free-spirited Eun-jeong, after drinking in three groups with her close friend Jae-hoon,, comes home. Sang-min, who noticed that Eun-jeong is quietly flirting with Jae-hoon, asks if he wants to do with Jae-hoon while having sex with Eun-jeong. When Eun-jeong actively responded, he made Jae-hoon go into the room where Eun-jeong was sleeping.

Jae Hoon was discharged from the army and came to his idol trainee younger sister's accommodation to stay for a few days. At the house, his sister's idol trainee friends, Hyeon Joo and Yeon Joo, are there. Her friends have a good feeling about good-looking Jae Hoon. In the middle of the war between the two women for possession of Jae Hoon, embarrassed Jae Hoon makes a shocking proposal to Hyun Joo and Yeon Joo...