Rumi Usagiyama (兎うさぎ山やまルミ Usagiyama Rumi?), also known as Rabbit Hero: Mirko (ラビットヒーロー ミルコ Rabitto Hīrō Miruko?) Rumi has an athletic yet curveacous figure with muscular arms and legs, and stands at a slightly below average height. Rumi has dark skin, red eyes which are tilted slightly inwards, long eyelashes, and straight white hair that used to reach down past her waist, but was later cut short.