Using the manga by Komiya Sanae and Nonomura Hideki. Dr. Narutaki, a genius who's wanting to preserve true Japanese men, not the losers they may be today, needs semen from 100 specimens. The problem is these 100 specimens wouldn't make it for him voluntarily, so he happens which has a plan. He gets Marin, an alluring girl from your all girl school, and puts her right into a special costume that transforms into a mans desire and won't are