Mio, a mother who has been living part-time and raising her only son since her husband died. She is struggling to make ends meet and is having trouble paying her rent, but she gets through with the help of a man in her neighborhood. However, Mio is asked to take care of her son, Masaru. Katsu, who doesn't know her mother, becomes curious about Mio's body and approaches her whenever possible. Like her real son, I touched her body, and when I took a bath together, I had an erection. Mio begins to feel pleasure in acting with her unconsciously, and builds a relationship that she seeks on a daily basis.
