Kurumi was enjoying a happy married life, but her husband's work became busy, and nighttime activities such as trying to get pregnant decreased. She is a married woman who indulges in masturbation due to frustration, but her husband's stepchild sees her doing it. In exchange for keeping quiet, she is asked to show her body because he is a virgin, and she reluctantly obeys, but the young man's bestial desire doesn't stop... From that day on, creampie impregnation sex begins...! The married woman, who is different from her husband, is eventually subjected to intense and rough sex...