benibana, nogizaka haruka, nogizaka haruka no himitsu, 00s, 1girl, arched back, ball gag, bdsm, blush, body blush, bondage, bound, breasts, brown eyes, brown hair, collar, female focus, gag, gagged, injury, large breasts, long hair, looking at viewer, masochism, nipple piercing, nipple rings, nipples, no pussy, nude, piercing, saliva, simple background, solo, tears, very long hair, welts, whip marks, white background, wiffle gag