Loona is a hellhound with a wolf-like appearance. She has a pointed, dog-like muzzle with sharp and pointy teeth, and a dark grey nose. Her eyes have red sclera, white irises and slit-like pupils, and she wears grey eyeshadow and black winged-eyeliner for makeup.

Her fur is white with grey countershading encircling her face, grey patches on her shoulders, and long, voluminous silver hair swept to the side to reveal her dark grey ears; the left of which is pierced with two small