Ningyou no Yakata - Season 1

A student named So spends his summer break working at the remote mountain estate of the wealthy Katsuragi family. He shares the residence with a beautiful woman, her daughter, and several attractive maids. During his stay, he discovers a mysterious dollhouse in the attic. The dolls inside bear a striking resemblance to the women of the house. So learns these figures possess a magical power, allowing him to manipulate their real-life counterparts according to his desires. He proceeds to use this power to successively enslave the women for his sexual gratification, unaware his actions are setting a course toward eventual ruin.