Yuki TSUBOI, the mother of Toyomitsu's milk cup

The mother of the explosive K-cup and Mazacon's perverted son had a relationship that he could never tell his father. One day, the son who witnessed the husband and wife's behavior was mad at his nephew. And the desire to leave her alone further escalated the perverts. A mother who can't say anything to such an abnormal eccentricity of her son, but is disturbed and mad. what about the father who witnessed that secret relationship?