Yuko Shiraki, exclusive to Takara Eizo! Two years have passed since his father passed away. His son and his wife return home for the first time in a long while. Seeing his mother for the first time in a long time, the son is suddenly seduced by her sexuality. His widowed mother has become more beautiful than ever. Then, by chance, the son sees his mother naked and becomes excited. "This is absolutely wrong"... The more he thinks this, the harder his crotch gets for some reason... He knows it's absolutely wrong...