I love my father-in-law more than my husband...

Nanako, who was living alone with her busy husband, is now living at her father-in-law's house. Her husband was a working man and Nanako was dissatisfied. It was her father-in-law, Genzo, who treated Nanako kindly. Nanako feels at peace with her father-in-law, who spends more time with her than her husband, who spends less time with her, as if they were a real married couple. Then, one night, Nanako, feeling lonely because her husband had gone to bed first, headed to her father-in-law's bedroom and rubbed her skin against his sleeping father-in-law...