Loona is a hellhound with a wolf-like appearance, characterized by her pointed muzzle, sharp teeth, and dark grey nose. She has red-sclera eyes with white irises, wears grey eyeshadow, and sports a black winged eyeliner. Her white fur is accented with grey patches on her face and shoulders, and she has voluminous silver hair cascading to the side, revealing her dark grey ears. One ear is pierced with small black hoop earrings.