Black Rock Shooter, known as BRS or Rock for short, is the eponymous character of the franchise. A mysterious girl with black hair in twintails, one longer than the other, and she has two scars on her torso and her hip. Her left eye burns with a bright blue flame. She wears a pair of knee high black boots, a black bikini top, black shorts with a light gray belt, and a black hooded jacket with a long back with a white star on the back. She carries two weapons, a rock cannon that can fire rapid shots or more powerful charge shots, and a crooked katana.