Shiho's daughter and son-in-law have been married for a year. The son-in-law was dominated by his younger wife every day. Today, he came to visit Shiho's house. That night, Shiho was masturbating as usual. Her son-in-law was peeping at her. The next day, while Shiho was reading and cleaning, her son-in-law stared at her buttocks. Unable to resist the impulse, the son-in-law hugged Shiho from behind. Shiho tried to escape but could not resist his strength and was raped. Shiho and her son-in-law kept this a secret from their daughter. From then on, they began to desire each other's bodies…
