Late night.
Behind the fortress of the Knight Territory is a massive cliff connecting to the Platinum Country. Upon ascending the cliff, one can see the distant Wall of Mist.
That is the boundary of the World Ring, the world's boundary for the next millennium.
However, above the cliff, there is a region 1 kilometer outside the fortress.
The interior of the cliff emits intense noise, as if countless machines are excavating inside.
If you look through the surface into the interior of the cliff, you can see a large section already hollowed out.
Many steel machines, resembling worms, are crazily consuming the solid rock and soil, crushing them into debris and ejecting them from the tail.
The debris forms a mound of earth, seemingly tracing the path of these steel worms.
After more than half a day of excavation, a large hollow area has appeared, reinforced with various steel bars and steel walls on the surface.
