She appears to have a flamboyant and rather showy attitude. She is explicitly shown to be the most emotional of her species. Kusu is a short humanoid who, despite being the Grand Minister's eldest child, bares the appearance of an early teen girl with pale blue skin and white hair, just like the other Angels although she wears it as a single braided side pigtail and her hair combed in the 80/20 ratio. She carries her Angel Attendant's Staff in her right hand. Her attire consists of purple robes.