The 6th Generation leader is a domineering woman with a very well-defined musculature, a svelte visage, long voluminous flame-coloured hair, ruby-coloured eyes and red tattoo-like markings underneath both eyes, round the tops of her ample bosom and lining each bicep. She has a distinct and very revealing attire, featuring a white haori over a form-fitting black crop top that exposes her underboob and toned physique, tied by a red-and-white rope belt and form-fitting black leg garments with stylised wedges; Kotaro is often seen smoking from her kiseru.