Min-goo is troubled seeing her two older sisters, Min-ji and Min-ah, go naked in their daily lives. After much deliberation, he devises a plan to have his friend Byeong-min come into the house. Min-goo proposes a family meeting. He lies to his sisters that he has no time to go because his father's business is not going well and declares that he will bring Byeong-min home. However, her older sister Min-ji is against it... Byeong-min, who entered the house, continues to be driven into a pervert...
Im Tae-mok
as Byung-min (병민)
Lee Chae-dam
as Min-ji (민지)
Ye Ri
as Min-ah (민아)
Sun Ho
as Min-goo (민구)
Kim Soo-ji
as Hyun-sook (현숙)
Ha Jin
as Bo-ra (보라)
