Tsukasa, a beautiful wife, returns to her husband's parents' house. She sympathizes with her father-in-law, who is dejected over his infidelity, and while drinking with him, she loses consciousness. When she regains consciousness, she sees her father-in-law licking her whole body... Her body is drugged and she cannot move freely, so she is licked and violated. The whole incident is filmed on video, and Tsukasa, who has her weakness exposed, is licked all over her face, fingers, armpits, and anus, even near her sleeping husband and mother-in-law. At first, she hates it, but she is completely seduced by his skilled tongue skills.