The void.
No one could explain clearly what this place was made of, let alone when this place had appeared.
An ancient species that was extremely curious had explored the void after developing extremely powerful space-time technology.
The experts of that race even went deep into the void to search for clues.
They left with a conjecture.
The void might have been created at the beginning of the universe.
By the strong ions ejected from countless quasars.
Only those ancient stars that were hundreds, thousands, or even tens of thousands of times brighter than galaxies could create such a spectacle.
Those terrifying giant stars had been created at the beginning of the universe.
At the speed of devouring gas that was equivalent to the mass of a star every day, they were crazily distorting themselves and all the matter around them.
Their accretion disks, in light-years, lay in the depths of the ancient universe.