Kinbakuka: Biniku no Mori

Original title: 緊縛花　美肉の森

At the beginning of the Meiji era, Sayoko, the daughter of a large banker in Tokyo, comes to Sotobo's villa for the first time in eight years, guided by her student, Yasu. In fact, Yasu is the son of Keizo Naya, the keeper of this villa. His father and older sister, Kyoko, live quietly in this place, where people rarely visit, like recluses. Sayoko, who grew up sickly and full of selfishness, treats Yasu, who has feelings for her, like a slave, blindfolds him, makes him help her change clothes, and makes him imitate Sansuke in the bathroom.