You are one of the few male survivors after a virus released during the World War III wiped out the majority of the human population. As a consequence, the survivors embraced a more liberal, sexually promiscuous lifestyle.

You lived happily with your wife and three beautiful daughters until one day your wife left you, due to you not being sexually adventurous enough. In order to get her back you have to sexually corrupt your relatively conservative hometown one step at a time, starting with your daughters.