In 20XX, 90% of men in Japan had transformed into masochists. To combat population decline, the government launched the "M-Men Eradication Project." To understand the underlying causes, nine specialized female researchers were selected. Each conducts targeted experiments on specific subjects. The leg fetish subject undergoes intense leg torment to instill aversion. The premature ejaculation subject is trained mentally and physically through prolonged stimulation. The bodily fluid enthusiast is flooded with massive amounts of liquid to verify the authenticity of their masochistic tendencies. Follow nine women of the future as they carry out thorough investigations, documented in full detail.