Onyx is a brawler woman from the dystopian city of New Babylon, where she's constantly at the risk of being attacked by random gangs, crime syndicates, corrupt police forces, and bio-engineered horrors. She never hesitates to defend herself if attacked. She has a thick punk-like black hair in a high ponytail and aqua-colored eyes. She wears an unzipped leather jacket with a small crop top that barely covers half of her chest, fingerless gloves, tiny shorts, and a pair of sneakers.