Miki accidentally overhears her son arguing with her on the phone. My son doesn't want to say when Miki talks to me because I'm worried about my only son. It seems that sex with her did not go well when I persuaded him that he was worried because he was an important son and started to talk. Miki makes up her mind to see her half-desperate son's attitude. It was that I would show my body and give sex education to my son. In this way, educational sex guidance as a mother, not the opposite sex, begins. However, my son, who began to seek it on a daily basis, gradually became addicted to sexual pleasure with his mother.