Rumi is a tall changeling with long, white, opalescent hair tied back by the bangs, with pieces falling down his face and shoulders. He has softer, more androgynous features, and iridescent eyes with long eyelashes. Protruding from his forehead is a pair of crystal-like horns, the left of which is broken in half. Golden tattoos of the sun and other celestial bodies mark his arms. On one ear is a black and gold earring with a dangling ornament, and his wrists are covered in gold bands.