Chiaki Asagiri, a 39-year-old mother of one. Celebrating her 10th wedding anniversary, she is praised by those around her as a "working mom who has it all," balancing career and parenting. Yet internally, she struggles to suppress her desires as a woman, tormented by fantasies of infidelity. As her husband has become more involved in child-rearing, their relationship has changed, leaving her with an even stronger sexual longing. Obsessive, lewd fantasies fill her mind throughout the day, driving her into a daily routine of compulsive masturbation. While continuing to play the role of the perfect wife and mother, her urge to reclaim her true self grows ever more intense—and once again, she awakens to that desire today.