1girl bdsm black_sclera blue_skin bondage bound breast_torture breasts censored clenched_teeth electricity electrocution electrostimulation grey_skin large_breasts nipple_torture nipples obui pain restrained silver_hair slave solo_focus spread_legs taimanin_asagi taimanin_asagi_battle_arena teeth torture two-tone_hair wisp_(taimanin_asagi)