Three years into her marriage, Rino was living a fulfilled life with her beloved husband. However, one day, silent phone calls began coming to her home. While she was anxious, not knowing who the caller was, a voice spoke over the line... The moment she heard it, Rino's body froze. There was no way she could forget it, no way she could ever forget... This was the voice of the man to whom she had devoted everything and become a prisoner of pleasure until three years ago, right before she married her husband. Then, as the past resurfaced and made her body burn with heat, that man appeared before her...