Firefly is a young woman with long, silvery-blonde hair with a teal ombre that reaches her waist, very fair skin, and eyes that are a mix of deep ocean blue and sunset pink. She wears a brown blazer over a green and white dress with a yellow bow tied in the front. Her sleeves are detached and about wrist length, held with black, ribbon-like bracelets — the right side with a white flower decoration while the left is plain. She also wears a brown headband with a black bow on the left side of hair