Black Rock Shooter, known as BRS or Rock for short, is the eponymous character of the franchise. She is depicted with her hair in two pigtails, 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 short 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.

BlackRockShooter [en.wikipedia.org]