Awakening the darkness element.

When humans were banished into this dimension they were divided into 3 groups. The first group were those who hated the All-Father, and obviously, it was led by Cassius. He settled this group on a large island which later expanded to the Tigeria empire during his slumber forced by his injuries.

The 2nd group were staunch believers of the All-Father. Not only did they not believe that the All-Father betrayed the realm, but they somehow believed that all this was a ploy by the other races to stop the Human race from rising above them.

This group settled at the East of the dimension, and after a few decades a genius named Synder was born into their midst, and the rest was history.

As for the 3rd group they didn't care about the views of both sides. They had the mentality that since they were already in this mess, the best course of action was to focus on their development. This group settled in the mountainous regions of the North and formed the Kaldron empire.