1girl, aa211108, animal_collar, bikini, bikini_under_clothes, black_choker, blush, breasts, brown_hair, choker, collar, fur-trimmed_jacket, fur_trim, idolmaster, idolmaster_cinderella_girls, jacket, jacket_partially_removed, looking_away, ninomiya_asuka, purple_eyes, simple_background, small_breasts, solo, swimsuit, upper_body, white_background, white_bikini