Natsume, who married at the company, had a child, and returned to work, is filled with frustration and unfulfilled desires amidst the daily grind of childcare and work. Her sex life with her husband has ceased after pregnancy and childbirth. She longs to be embraced, yet lacks the courage to initiate intimacy. One night, Natsume wakes up drunk to find herself in a hotel with her subordinate, Nakajima. Faced with her sleeping subordinate's unsuspecting groin, Natsume can't resist sucking his penis. "Oral sex isn't considered infidelity, is it?" The desires of this adulterous wife begin to be unleashed…