Asako Kojima, a married woman who suffers from infertility, meets her husband's younger brother Hideo at the hospital for infertility treatment. Unlike her husband, who is uncooperative in fertility treatment and is perfunctory about sex, Hideo, who takes a liking to Asako and listens to her kindly, forgives her heart and even her body... The uterus and vagina throb at the sight of Hideo, who approaches her violently and passionately. Forbidden sexual copulation that devours pleasure with a cock other than her husband who is overflowing with love juice. Asako begs to be put out in the vagina because of the pleasant feeling. After Hideo's seeding raw creampie sex, a new life dwells in the Kojima family