Nao has dark duusu eye blue hair, pale skin, and red eyes. She had a terrible childhood because her parents were alcoholics who didn't care about her at all. She's a very bubbly and cheerful young woman, always seen with a smile on her face, though she can be rather sensitive when taunted. When she rose up as a Shiki, she tried to turn her son, husband and her parents-in-law into shikis so she could live with them forever and not lose them as they are her only source of happiness.