Naoki has decided to live with his wife and her parents. However, in fact, there is a secret between Naoki and his mother-in-law Nanako, that the two were former colleagues and spent an adulterous night together... The desire for Nanako that has been building up over the years explodes under the same roof! "I can't forget my mother-in-law's breasts!" The mother-in-law's body is soon...