Mai, who has been raised in a single-mother family for many years, was taken by her mother, who was happily remarried at a mature age, and decided to live with her remarriage partner's house. My mother's remarriage partner is gentle and financially stable. "Don't hesitate to spend your time as if it were your own home, Mai-chan," the middle-aged man who welcomed her was bewildered by the obscene glances with obvious sexual nuances thrown at key points. - But one night in the bedroom ...