In the year 20XX, 90% of men have become masochistic men. The Japanese government, troubled by the declining population, has launched the "Project to Eradicate Masochistic Men" and selected nine special researchers to investigate their biology. A leg fetish test subject is relentlessly tortured to make him feel disgusted, a premature ejaculation test subject is raped to train him both physically and mentally, and a bodily fluid-loving test subject is injected with large amounts of fluid to verify his masochistic nature... This is a thorough investigation record by nine women who have been entrusted with the Mirai!