In the past, the Abyss only had a single layer.
This layer was the size of a massive continent, spanned thousands of miles, and later, it was called the "Land of Endless Races".
In this great continent, the first Abyssal Demons appeared.
But before these first Demonic Races even walked the land, there was one creature that was born before them.
It was none other than the Golem of Destruction, Antero.
He was the oldest creature in the Abyss, as well as the one who struck fear in the hearts of many.
Several years later, the 2nd Layer was born.
A few thousand years later, the 3rd Layer came into being.
This cycle continued until the present day, and hundreds of Layers had been created in the abyss.
But it didn't end there for the Abyss was constantly expanding, even extending to many planes of existence and breaking through to several star systems in the multiverse.