The Void Dimension!

Strictly speaking, the Void Dimension didn’t belong to the large universe, and it was an independent universe outside the large universe. The actual cosmos was boundless, so it naturally didn’t just have a single large universe.

Exploration!

Since the human race was born in the world, it had been exploring incessantly. First, it explored its own planet, then it explored outer space. After that, they started exploring the universe. As for the Void ...