Kirumi is a tall, thin young woman with pale, ashy, sage-colored hair and long bangs that obscure her left eye (but her left eye is occasionally visible through it when she's expressing certain emotions). Her skin is fairly pale, and her eyes are of a pale, warm green color. Her maid uniform consists of a long black apron dress in a pinafore style with a spiderweb motif (possibly foreshadowing her execution), four white buttons along the middle of the torso of her dress.