Shiokawa Undan has stepped into the forbidden underground space that is said to have already claimed over 30 victims. She has a strong fucking masochistic aura, so she is slapped, strangled, and spanked to turn on her M switch, and then deprived of physical freedom with iron restraints. She is held in a humiliating position, and her exposed anus twitches, perhaps in excitement. Her masochistic anus is forcibly opened and swallows a huge cock, various foreign objects, and an enema device one after another. #YoroP