Nayuki is an athletic girl with long straight blue tinted hair that has fringes covering her forehead. Nayuki is a kind but stubborn individual who deeply cares about others, but she is also known to be absentminded and a sleepyhead. She usually acts happy and positive. She is often seen wearing her school uniform but is also seen in her residence wearing a red-pinkish pajama with yellow cat footprints. She really loves cats and she has a favourite stuffed animal, a frog called Keropi. 