Aoi is a lewd wife who feels a strange emptiness and loneliness even in her loving relationship with her husband. Seeking comfort, she tries a matching app—only to discover that the man she matched with is her own father-in-law, who has been lusting after her for a long time. Though confused and hesitant at first, the two of them eventually cross the line. Their secret relationship is then discovered by the insurance salesman who regularly visits the house. Using the affair as leverage, the insurance salesman pushes Aoi to submit as well. She ends up letting him lick her feet and armpits, and ultimately becomes a shared meat toilet for all three men…