Ten Thousand Mountains, in a forest near a human village.
"Have the traces of those monsters extended to here?"
Silently and stealthily, a russet-colored fox emerged from a burrow and curiously surveyed the distant steel fortress.
As the cleverest among the new demons enlightened by the Demon King, Fire Fox had been closely monitoring human activities beyond the Ten Thousand Mountains.
However, precisely because of this close scrutiny, Fire Fox could not comprehend what had transpired.
Three months ago, a group of creatures more monstrous than itself appeared at the edge of human territory and began a "major infrastructure project" with some ordinary humans.
Clearly just commonplace items, but in the monsters' hands, they turned into all sorts of bizarre materials and tools...
And when those materials and tools came together, one after another, the steel fortresses and the broad roads connecting them emerged.
