Housekeeper momoko is our family's mother and wife

My father and mother are separated from each other for several months, and the housework becomes devastating. My father decides to employ a housekeeper. The growing brothers, Koki and Hidetsugu were half doubted, but they looked at the bewitching momoko sent from the housekeeper center, and they changed their eyes. And one day, they witness father and momoko's tragic acts. The two people who worked for the evil thought put the scene in the picture, and the next day, I tried to make momoko a medium-sized pet dedicated to the brother for the picture.