Touched roughly on her nipples and forcibly penetrated through the hole in her panties, Ozawa Akane writhes in a state of mixed pain and pleasure. When the electric massager is applied, she grimaces from the intense shock shooting through her skull, her body trembling violently. With her body lifted, bent forward, her buttocks are thrust into by a piston machine. She experiences an unimaginable humiliation—being deeply penetrated by an inanimate mechanical object.