koucha, yoshitomo (koucha), black rock shooter (character), hatsune miku, black rock shooter, vocaloid, bad id, bad pixiv id, 10s, 1girl, belt, bikini, bikini top only, black bikini, black hair, blue eyes, blue theme, boots, chain, coat, cross, female focus, flat chest, front-tie top, gloves, glowing, glowing eyes, hood, hooded jacket, jacket, knee boots, latin cross, long hair, midriff, pale skin, short shorts, shorts, solo, star (symbol), swimsuit, twintails, uneven twintails, very long hair, wind