Bibi is a white teenage girl with long blonde hair, typically up in twintails. Her eyes are a white iris with grey sclera and her pupils of the same color, shaped like hearts. Her outfit, being an alternative of her school uniform, is formed by a white headband along with a pink patterned sweater and tie above a short white dress shirt. As a bottom, she wears a grey skirt with buttons on the side. She has middle length white stockings with a pink line in them, and typical black Mary Janes.