Kaguya and  are twins, respectively, they have almost the same appearance: light red hair, blue eyes. They are 17-18 years old, their height is 158 cm. Kaguya Yamai is a rather thin and fragile girl at first glance. Her hair is almost always braided in a basket. Always determined. Yuzuru has a model appearance. Her hair is in a pigtail. She is always calm, rarely shows emotions. The eyes are half-closed. They are both the spirit of Yamai, who used to be one.