The Fujima family appears to be an ordinary household, but in reality, they harbor a secret that they can't tell anyone. That is... the entire family are perverts. The mother Yumi and her son have a relationship, indulging in each other's bodies as their desires dictate. However, the husband, who is even more of a pervert, doesn't get angry about their relationship but instead pretends not to notice and sets up hidden cameras. He gets highly excited watching his wife writhing in ecstasy as she is penetrated by her son...
