In the future, overpopulation is a serious problem. It all stems from the "Mega-Playboy" who passed his playboy DNA on to his one hundred children, who in turn had one hundred children each, and so on! Karin Aoi, a DNA Operator, has traveled back in time in order to change the DNA of the original "Mega-Playboy"--but is Junta Momonari really him? He can't even look at a girl without throwing up!