Rumi is a dark-skinned woman of average height. She has red narrow eyes and white hair reaching her thighs with bangs that part to the left of her face. While slender and curvaceous in frame, she also sports a lean, athletic and 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. The story takes place when Rumi was 17 at U.A. Highschool before she became a pro hero.