Aimi had married a kind-hearted man and built what seemed like a happy family. But she harbored a secret she could never reveal to her husband: her deep, passionate love for her son, Yuki. Though she did love her husband, she found no satisfaction in their dull, lifeless sex life. Yuki, however, always desired her. He understood her unfulfilled desires and became the one who fulfilled her emotionally and physically. No matter how close her husband was, Aimi continued to secretly crave and intimately unite with Yuki, silently surrendering to their forbidden passion time and again.