Ga-yeon comes to Min-jae's house where he lives alone, and decides to live there. Min-jae is curious about Ga-yeon who he haven't seen in a long time. One day, Geon-soo goes to Min-jae's house to pick up some stuff and meets Ga-yeon. Ga-yeon seduces him. Min-jae finds out about it when he phoned Geon-soo. Da-hae meets Min-jae to become sex partners and frequently contacts each other. Min-jae gets angry at the sight of Geon-soo wearing only underwear at his house. Gayeon comes out to meet her fr...