Do you know “the world with zero sense of immorality”? In this world, we have sex on a daily basis, just as much as we breathe. Whether at work or at home, everyone interacts equally at any time, welcomes acme, and cums in large quantities. Today, we will take a look at the ecology of a “family” where it is natural to have sex with anyone, including the son’s school teacher, the husband’s company subordinate, and the passengers on the train.