Fifty-year-old Shiori had grown frustrated with her lackluster sex life with her husband, feeling increasingly annoyed and unfulfilled. However, once her relationship with her son began, her body started responding honestly and passionately. She feels deep affection for her son, pities him for having been rejected, and genuinely desires to comfort and heal him. This emotional longing awakens the profound carnal desires of a mature woman, portraying a mother's pure yet intense passion.