After separating from her husband, Miina raised her son Kouta single-handedly. She was a dedicated and good mother but failed to notice her son's growth as a man. Kouta began to take an interest in women's bodies and would molest Miina while she slept. Realizing the need for sex education, Miina decided to teach him the basics of sex using her own body. How to touch breasts, how to handle female genitalia, and even insertion... A gentle and thorough practical sex lesson that only a mother could provide.
