ALDN-593 - Sister-in-law, you're all mine during the day lol

Yuri, married for 5 years, lived a happy life with her devoted husband despite not having children. But her life turns upside down when her husband's younger brother, a NEET, moves in. As soon as the husband leaves for work, the brother starts acting out and harassing her. Unable to tell her husband, she decides to take matters into her own hands and 'discipline' him herself.