The series follows Chisato, a beautiful and devoted housewife who feels increasingly lonely and sexually neglected by her workaholic husband, Tatsuhiko. Her loving son, Kouichi, notices her sadness and steps in to provide the comfort and affection she craves. What begins as innocent consolation quickly blossoms into a deeply passionate and forbidden incestuous affair. Kouichi worships his mother's body, and soon they are exploring their taboo desires in secret. The story chronicles their escalating sexual relationship, from tender, loving oral sex in the kitchen to raw, desperate fucking while the oblivious husband is just rooms away. They seize every opportunity to indulge in their lust, their bond deepening with every shared orgasm and whispered confession of love, creating a secret world of pure carnal pleasure built on the ultimate taboo.