A year after becoming a single father and son household, the father, unable to bear the devastating lifestyle, decides to hire a housekeeper. His growing brothers, Sakuto and Yuma, also support this, and Yuka is sent from the housekeeper center. Yuka is perfect at cooking and cleaning, and her unprotected chest makes Sakuto and Yuma's sexual desires almost explode. Then one day, the two witness Yuka and their father in an obscene scene. The two take the opportunity to take a photo of the scene, and decide to make Yuka their obedient creampie pet...