[A drama about an adulterous affair between a healthy-bodied housewife and a younger man!] With no children and a husband busy with work, bored Yuki decides to start working part-time at a cafe. At first, she thinks of her younger coworker as a reliable little brother, but when he confesses his feelings to her, their relationship changes completely. At work, in a hotel, at his house... she sweats and indulges in creampie sex, which is far too risky for a body of childbearing age. Today, the two are like animals, with their throbbing uterus and penis intertwined...