Two years ago, Fumi Ayagawa found happiness in motherhood. However, her hopes for a joyful family life were shattered by her husband's lack of support in childcare, leaving her feeling isolated and lonely. On top of that, their postpartum sexless marriage continued, causing their relationship to grow cold and her stress to build up. When she confided in a fellow mom, she heard about how the woman relieved her stress through an affair site. Out of curiosity, Fumi visited the site herself and was quickly drawn into a world of intense desire and pleasure, stepping into the dangerous realm of infidelity. In this reunion chapter, having already tasted forbidden pleasure, she finds her lust growing stronger with the man's passionate touch and overwhelming sensations. Tonight, she loses all reason, forgetting her husband completely, and desperately locks lips with her lover in a frenzy. Fingers entwined, tongues intertwining, their sweat and arousal blending together—this sex unleashes the full seductive charm and fiery passion of a mature woman. Her heart and body are once again lured into the ecstasy of adultery.