"First infidelity" x "First sexual intercourse" We're sure to be excited by both of you.

Maki is a married woman who lives a cold-hearted married life. She has been unaware that her husband is cheating on her for a while, but has not said anything and is living a full-time housewife. One day, she finds out about matching apps at the recommendation of a friend, and meets a 26-year-old young man, Kosuke... Six years after moving to Tokyo. Maki has sympathized with a young man who is unable to get used to living in the city and is lonely. And Kosuke, who has no experience with women, begins to feel a sense of peace that Maki has never felt before...