A year after becoming a single-father family, the father decided to hire a housekeeper. The two growing brothers Sakuto and Yuma also agreed to this, and Yuka was transferred from the housekeeping center. Yuka is perfect at cooking and cleaning, and what's more, with her breasts unprotected, Sakuto and Yuma are on the verge of an explosion of sexual desire. And one day, the two witnessed the erotic appearance of Yuka and her father. The two of them took pictures of the scene right here, and decided to make Yuka a suitable pet just for the two of them.