Shizuka's mother-in-law lived alone after her father-in-law passed away. A girl couple decides to live together out of concern for Shizuka, who has no willpower. Life together is going well, but my son-in-law lives in pain every day. My mother-in-law is so attractive, and I have fantasies about making moves on her. Son-in-law came home early. My wife goes shopping. When the son-in-law hugged his mother-in-law who was preparing to take a bath, he caressed her because she was so attractive. A mother-in-law does not like her, but she cannot compete with her son-in-law's power, and gradually feels...