24-year-old Sumire. Her older husband constantly seeks her out every night, but their sex life consists only of quick insertions without foreplay. She's tired of this sexless, obligatory routine that lacks affection. She reunites with a friend from her school days and confides in him about her troubles. Their conversation naturally leads to a physical relationship... Today, her husband is away on a business trip, and she invites her friend over to her house for a scandalous affair! They engage in intense, relentless fucking on her bed, where she usually sleeps with her husband, culminating in multiple creampies. Sumire's slender body is pushed to its limits by the relentless pounding, and they keep at it until morning.