One day, a mother who witnesses her son Atsushi masturbating while looking at an erotic book. Knowing that her son can't get along well with women, her mother uses her body to try to build immunity to women, but... I'm worried about my son's caressing and sex caress, which only has knowledge of erotic books. From there, the mother's sex education for her son begins. And the son and mother, who are improving little by little, match their bodies over and over again.
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