Rule 34 Dev - 1girl bemani bikini black_bikini black_collar black_footwear collar detached_collar detached_sleeves elbow_gloves gloves grace_(sound_voltex) headset highres hyou_haku long_hair pink_eyes pink_hair sound_voltex sound_voltex_iii_gravity_wars strapless strapless_bikini swimsuit twintails|17049229587