GVG-280 Underground anal slave for sexual purposes

A black market in the basement of a building in Tokyo. Here, women who have been bred as anal slaves are regularly shipped out. The buyers there carefully select the anal holes of the women one by one. This time, the buyers tied up No. 1 and No. 4 and began anal training. What will be the fate of these slaves who are tested on enemas, public anal masturbation, double hole torture, and even anal fucking?