issign, sign (artist), black rock shooter (character), hatsune miku, black rock shooter, vocaloid, highres, 10s, 2girls, aqua hair, belt, bikini, bikini top only, black hair, blue eyes, choker, closed eyes, coat, front-tie top, gloves, glowing, glowing eyes, hairband, headphones, headset, hood, jacket, long hair, midriff, multiple girls, navel, pale skin, see-through clothes, short shorts, shorts, sign, star (symbol), swimsuit, twintails, uneven twintails