Rin Sasahara's sister-in-law is unlucky to have to live with a husband who has an extremely disgusting lifestyle. She has to constantly clean the room and house. That disgusting lifestyle makes her even more tired. everyday. But she still could endure it. Who would have thought that in addition to being messy and not taking care of business, he was a pervert and had been paying attention to Rin for a long time while she was cleaning the house, and one day suddenly suspected of attacking her when her younger brother had gone out to work… The following days she became his sex slave…