The Parent and child which young, beautiful mother, Haruka Nozomi and Shiro of the son look like Couple according to others and can talk about with even anything. However, after all only the Koto about 'Sei' did not talk about even such a parenthood from the son who entered puberty. One day be informed of the Koto which Shiro brings AV in a school, and became the problem from a class teacher. The Haruka Nozomi worries, and make up its mind to tell a son with one's body as mother about body of the woman, SEX. Be puzzled sons, but lips of mother are young, and be attracted by the touch of the firm breast, and will know the body of the woman by forbidden writing brush lowering at last at the start.
