funitarefu, tachibana charon (unless terminalia), unless terminalia, commentary request, commission, highres, pixiv commission, variant set, 1girl, 4boys, anal hook, armbinder, bent over, breasts, collar, harness, human furniture, humiliation, large breasts, metal collar, multiple boys, nipple jewelry, nipple piercing, nipple rings, nipples, nude, object insertion, open mouth, piercing, pink eyes, pink hair, restrained, ring piercing, solo focus, stationary restraints, twintails