My brother-in-law, Atsushi, and his wife, Naomi, decided to be transferred suddenly and stayed at the Shiraki family for a while. At first, his wife, Yuko, welcomed him pleasantly, but he began to spend a frustrating time with her brother and his wife's friendship and sexlessness. Gradually her frustration increases, Yuko can not stand it and attacks Atsushi's sleep. Atsushi is surprised at the sudden thing, but she is swept away by her desires without being able to resist her fascination. From that day on, Atsushi was forced to become Yuko's endless lust partner.
