pen (steelleets), black rock shooter (character), black rock shooter, bad id, bad pixiv id, highres, 10s, 1girl, arm cannon, belt, bikini, bikini top only, black hair, blue eyes, boots, chain, coat, female focus, front-tie top, full body, glowing, glowing eyes, gun, huge weapon, long hair, shorts, simple background, solo, star (symbol), swimsuit, twintails, uneven twintails, weapon, white background