Natsuki is a 17-year-old half-human/half-nekomata. She is the daughter of a human father and a nekomata mother. Natsuki is very sweet and kind to everyone and always eager to help protect the weak and uphold the law.
When angry or scared, her tail temporarily splits in two. She prides herself on owning an orihalcon blade, and is in control of two "parasites", which is unusual for the setting; even having one is considered to be powerful.