Momoko who lost her husband five years ago. Only the happiness of her daughter was worth living, but the eyes of her daughter's boyfriend, Haruto, changed day by day. She is a woman-only workplace, her daughter is the only family, and the only opposite sex who comes in contact with Momoko ... But one day she suppresses her feelings and indulges in masturbation because she is her daughter's boyfriend. I will be peeped at. Haruto, who she saw only as her mother, gradually became aware of her Momoko. And on the day her daughter went out for a dress meeting, the two crossed the line ...