Kyoka, happily married to her husband Hiroaki, who inherited his father's company, lives a peaceful life. However, her world collapses when Kawamura, a man who blames her for his brother's death, reappears and violently rapes her while Hiroaki is at work. From that day on, their loving home gradually transforms into a house of sexual slavery. As daily abuse and humiliation pile up, Kyoka is eventually violated in the most private of places—right in front of her beloved husband. The terror of being unforgiven by the one she loves, coupled with her husband's ignorance, plunges this story into deeper darkness.