Hibiki Otsuki appears in the erotic novel series!! This time, we have a special selection of novels from the popular series "Married Housekeeper"! Hibiki is hired by the client's father to take care of his grandfather. The client's son begins to see Hibiki as a sexual object as he watches her take care of his grandfather. One day, his grandfather witnesses Hibiki providing sexual care and is unable to suppress his desire to have sex with the housekeeper. What will the grandfather do when he sees his grandson like that?!