Noa, who is working hard as a new employee, is engaged to her boyfriend. - Noa grew up in a single-parent household for many years. - Starting this month, I will be living with my mother's new husband, a middle-aged man, for a while. - Noa had met her mother several times before, so she started living together with peace of mind. - However, after they started living together for a while, when they were alone together while their mother was away, they began to feel the lewd gaze of their middle-aged father-in-law...