A married woman, Julia, goes out drinking with Nakano, a young employee who has been supporting her since returning to work after a long absence, to deepen her friendship with him. When she takes the drunk Nakano home, he unexpectedly confesses his feelings to her. "There are girls younger than me, aren't there..." she refuses at first, but her passion gives way and they have their first creampie sex in a long time... A mature body and a young libido are a better match than she could have imagined. From then on, the two get addicted to intense sex and youthful days both at work and at home, and no one can stop them now.