!?, 1girl, arms_behind_back, asyura_kumo, bdsm, black_blindfold, black_thighhighs, blindfold, blue_eyes, bondage, bound, bound_arms, breasts, dungeon, green_hair, hat, iron_bars, kneeling, leash, medium_breasts, pleated_skirt, restrained, rope, shiki_eiki, skirt, thighhighs, touhou