1girl arms_behind_back black_hair blush bound bound_arms breasts breasts_out clenched_teeth commission copyright_request crying head_scarf highres imminent_rape indoors leg_up medium_breasts nagashii_kouhei nipples obi pants red_pants red_socks restrained sash shibari skeb_commission socks solo striped striped_pants tabi tears teeth tiptoes wide-eyed