Midari is pale skinned girl with short black hair that is styled in a concave-cut and extremely tiny pupils. In the anime, close-up shots of her eye indicate her eye color to be yellow-green. She wears a rarely seen variation of the Hyakkaou Private Academy uniform; a sweater vest in the same colors as the school's black and red blazer, a white button-up dress shirt and a dark pleated skirt, and black socks. She wears the academy's footwear. Midari is left-handed.