"The entire mortal world is boundless and infinite, and it is not just limited to the Three Thousand Great Worlds."
To be honest, as Zhou Sui began to traverse the mortal world, across endless time and space, he discovered that the mortal world was extremely vast, almost immeasurable and without boundaries.
The so-called Three Thousand Great Worlds are merely those worlds with names in the mortal world, known to people.
In fact, the number of worlds at the Great Thousand World level far exceeds the number three thousand.
There might be thirty thousand, or even three hundred thousand.
As for the number of Middle Thousand Worlds and Small Thousand Worlds, it is even more, comparable to the countless grains of sand.
However, these worlds have limited potential and lack True Immortal level inheritance, so in ordinary times, not many cultivators can undergo tribulation and ascend to become immortals in the Immortal World.
So they are not known by outsiders.
