Kei is a 22 year old woman. Kei was a visually stunning young woman with long, black hair which is normally tied in a bun. She wore a maid's uniform consisting of a black blouse and a white apron decorated with two pins that resemble lightning bolts and the letters G and U on each pin. And on her head, she wears a chin-strapped black hat also decorated with the letters G and U. Her pantyhose are patterned with stars, and her shoes were designed with a bow-knot. Kei typically shows no emotions.