There were almost an infinite amount of worlds within the 900 million World Layers.
And among these innumerable worlds, there existed a unique type of world that was different from the rest.
They were the first worlds to be formed into this universe, some of them even before the birth of the Gods.
These unique worlds were formed naturally and not made by the Gods.
Such worlds were commonly referred to as Prehistoric Worlds.
And this world that Gu Qing Shan was currently on, was one of those Prehistoric Worlds.
Through countless years, the struggles these worlds went through far surpassed most other worlds.
Because of a certain characteristic among many that their World Origin possesses.
-----Eternal.
Every creation of the Old Gods would naturally come to an end sooner or later.
But Prehistoric Worlds possessed the 'Eternal' characteristic.
