Kaori is the mother of his beloved wife. A mother-in-law, someone who should be respected, becomes an object of lust. While his wife is away, his mother-in-law begins her skilled seduction. While she reminds him of his wife, her body is even more ripe, causing the man's reason to crumble. The man feels an irredeemable sense of immorality as he pours his wife's husband's seed into his mother-in-law's womb. She accepts the creampie with surprising greed, thrusting her hips as if cherishing the hot seed. A passionate and sloppy mother-son sex that tramples on the familial bonds with pleasure.