Natsuki is shown to have long black hair cut in a typical anime style, which she pulls back with a pink bow. She also has rather large black eyes and if you look closly enough, you can see her fangs.
Typically, she wears what seems to be NORA's uniform a white jacket with blue lining and since she is female, a white skirt again with blue lining.
Natsuki is a very cheerful person, almost always smiling and chirping around. She can be rather dense sometimes, and is shown to worry over Haruka"s health.
Natsuki appears to be rather good friends with Haruka, worrying about his health and is willing to fight and/or sacrifice herself for him.
They are confirmed to be childhood friends. It is also hinted that Natsuki might have feelings for him thus has the jealously when he asked Noah out.
Skills and Abilities
Telepathy Or a form of it. She can read a person's mind by just holding their hand.