Medanzo's theory about the Book of Gaia was that it had collected World Fragments from the Primordial World... The so-called little girl's diary was merely a smokescreen.
These were projections of certain historical fragments of the Primordial World itself through the diary's contents. They were not necessarily the Primordial World's true experiences and could be only superficially similar, but one thing was certain... There were no rootless duckweeds.
There had to be things that had once happened, and they had to be major events.
"Leaving the other pages aside, just considering the current Page World, there's even a Void Asura that's about to complete its evolution..."
As for the Void Asura, every immortal in the Dimensional Gap would turn pale at its name. That creature possessed intelligence, could learn and evolve, and could even command all the Void Origin Demons unconditionally. It was practically a nightmare.
Void Origin Demons invaded the kingdoms within one Dimensional Gap after another, hunting the souls of immortals. They especially loved invading places with large numbers of believers, such as divine kingdoms.
Heaven in particular was a disaster zone... Medanzo's claim that he had once slaughtered hundreds of thousands of Void Origin Ancestors, creatures superior to Void Origin Demons, was not an exaggeration.
Heaven at the beginning had not been as prosperous as it was now, with places such as the Holy Light Kingdom, Eden, the Holy City Sanctuary, and the Palace of the Fiery Heavens.
The original Heaven had been nothing more than a small special region surrounded by endless Void Origin Demon creatures... Heaven had reached its current state step by step through a long war, progressing from suppression to equilibrium and then gradually clearing the Void creatures from its surroundings.
The turning point that reversed the vast disparity between the two sides