After her divorce, a still youthful and sexually vibrant Ryoko found herself alone, indulging in masturbation to cope with the absence of her sons. One day, catching sight of her son's mature physique, memories of her late husband resurfaced, stirring deep, uncontrollable emotions within her. Unable to resist, she began seeking solace through her son, reliving past desires and confronting her own forbidden urges. "I am a mother who shouldn't crave climax with her son," she confesses, laying bare her inner turmoil.