Kitasan Black has dark, almost black medium-length hair styled into two fluffy ponytails with red ribbons and decorations. Large black horse ears are positioned on top of her head. Her eyes are large, brown with a golden sheen, expressive and friendly. She wears a red ribbon tied in a bow around her neck.
She is dressed in a brightly decorated kimono in Japanese style, mainly black and red with golden and white patterns. The kimono exposes her shoulders and is adorned with decorative elements, while a red sash with a bow is tied at her waist. The skirt is short, fluffy, orange-brown with patterns. The kimono features long sleeves decorated with ornaments.