Beatrice is Natsuki Subaru's contracted Artificial Spirit and a member of the Emilia Camp. She used to the caretaker of the library until its destruction. Beatrice has long cream colored hair that she has tied in two rolls along with blue eyes with a pattern at the center. She wears a frilled dress with pink ribbons, tights, and shoes.

A tiny crown lays latched upon the rear right side of her hair, with a butterfly-shaped ribbon joining her cape at her sternum. Beatrice generally looks down on others and is bad at dealing with people who try to get close to her. Despite being full of bravado, she's a lonely person, and is softhearted beyond her perceived stubbornness. She is affectionate towards Pack because of their similarities and favors him over the others in the Roswaal household. She has a distinct way of speaking, adding kashira (かしら, "I suppose") at the end of her sentences. Yin Magic: Beatrice is a master at Yin Magic and is capable of casting all Yin Magic, even those that have been long since forgotten by people in the present. Contract Spirit: Beatrice is currently contracted with Subaru, though according to her he isn't a true Spirit User. She also has a terrible mana consumption rate and formerly got around his by draining mana from people in the mansion using the library as a medium. As she is an Artificial Spirit, she also has several conditions Subaru is forced to follow:

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