After some understanding, Du You realized that the underground world of this world truly exists, but it doesn't mean that the underground world is just a larger space. In reality, it should be considered a special existence, similar to a plane.
The channels connecting the surface to the underground are not just simple pathways; they are naturally formed spatial channels that merely extend downward from the surface. The spatial energy is dense, and Du You can distinctly feel it.
Besides this, the underground world is actually a world as rich and vast as the surface, with absolutely no small area, and very abundant resources. It also has its own unique biological system, which is very magical.
