kaya (pixiv), black rock shooter (character), hatsune miku, black rock shooter, vocaloid, bad id, bad pixiv id, 10s, 1girl, belt, bikini, bikini top only, black hair, blue eyes, boots, checkered floor, coat, female focus, flat chest, front-tie top, glowing, glowing eye, glowing eyes, hood, hooded jacket, jacket, knee boots, long hair, midriff, navel, pale skin, short shorts, shorts, solo, swimsuit, twintails, uneven twintails, very long hair