Yuri, a high school girl caught in the ruthless underground business world, is forcibly dragged away and subjected to pleasure experiments akin to female body dissection. Miraculously, she seizes a brief moment of opportunity and escapes. However, the underworld won't allow such defiance. Once again, sinister hands close in, dragging Yuri into a new stage of torture. Master torturers who intimately understand the female body lure her into an endless hell of pleasure...!!