Kaho returns with her husband to the family home where her widowed father-in-law lives. That night her husband rejects her advances, leaving her to masturbate alone. After witnessing it, the father-in-law grows angry that his son went to sleep without satisfying her. The next day he corners Kaho while she cleans and promises he can make her cum again and again. She resists at first, but repeated orgasms at his hands gradually overwhelm her.