My father decided to remarry. Iku, who became my mother-in-law, was a kind and very attractive woman. I couldn't see this person as my mother. Before I knew it, I started fantasizing about Iku's naughty acts. Mr. Iku masturbates as if to show off, Mr. Iku has an affair with his neighbor... The son's love for his mother-in-law explodes and he does something forbidden! !