Maki Nikaido is a 10-year-old schoolgirl and the daughter of Dr Kimihiko Nikaido. Her mother was presumably deceased prior to the events of the film. She shared a close bond with her father's assistant Dr Kimiko Kujo (also known as K) before the murder of her father. Maki appeared as a pretty girl with chin-length black hair with her bangs covering her eyebrows, and wherever she goes, she was always seen carrying a teddy bear that contains a recording of her mother's voice. She was also shown to be sensible, calm and kind and caring towards her kin, though she can be quite ruthless towards those whom she hated (notably Kujo for killing her father).