toyomasu takahiro, hiyoko soft, kurui ~ryoujoku kyoushitsu~, game cg, source request, 1girl, ball gag, bdsm, blue hair, blush, bondage, bound, breasts, collar, drugs, female focus, gag, gagged, grabbing another's breast, green eyes, groping, injection, male hand, needle, nipple injection, nipple penetration, nipple piercing, nipple stimulation, nipple torture, nipple tweak, nipples, pain, piercing, saliva, short hair, slave, sweat, syringe, torture, white hair