In the early development of Nova, a large number of survivors of the old land were taken away, and a large number of talents left with them. This is one of the reasons why the old land was seriously regressed and has not recovered for a long time, and this great migration lasted for decades.

It was not until more than a hundred years ago that Nova closed its doors.

In addition, after the hot war, the land was devastated and the environment was extremely harsh. There were not many people left in the old land, so it was not easy to restore.