Rumi is a dark-skinned woman of above-average height. She has narrow red eyes with long, defined eyelashes and straight white hair reaching her thighs with bangs that part to the left of her face. While slender and curvy in frame, she also sports a lean, athletic, well-defined build, especially in her arms and legs. From her Quirk, Rumi has long white rabbit ears pointing upwards above her head, along with a small and white round tail, giving her an overall resemblance to an albino rabbit.