Will o Wisp
Hannah inherited the ability of her grandfather to make "elementary dolls", but he forbade her to do this after she did her first doll, her maid Emily. However, after his death, Hannah found a strange men's "elementary doll" by name Will in the basement of the workshop of his grandfather. Who did Will and for what purpose? Why does he call her "teacher", and there are such as he? These are just some of the riddles that Hannah must solve.