The surface stage covered the entirety of the Middle-Earth and the surrounding coastal areas,
so the Sick One organizations based in the Middle-Earth had to relocate completely, including the United Plague Zone—"Between Blood and Skin."
However, since the Supreme Plague Council had voted in favor of it, the Duke himself would fully cooperate with the work.
Moreover, with the precedent of the former Source Plague Zone—Crimson Manor—nearly being destroyed, the United Plague Zone had also incorporated elements of the new era during its creation. Groups with distinctive characteristics, such as Duke's Guild and Fear Circus, had endowed the Source Plague Zone itself with an "active" attribute.
Although factory production still needed to be firmly established, the Duke had used the properties of blood to enable the United Plague Zone to switch between being fixed and mobile.
Currently,
a river of blood spanning the Middle-Earth was carrying the leather factories away and flowing into the sea.
The entire Middle-Earth had been almost completely emptied in a single day, leaving it all to the stage William had planned.
However, the stage built in the Middle-Earth was only the surface—or rather, the "outermost layer."
The reason William's blueprint required the entire lesion's assistance to construct, and even required the Manager, a master of space, to serve as a technical consultant, was that it was not merely a flat plane.
Besides the area represented by the x- and y-axes of the plane, the blueprint also depicted the longitudinal coordinates of the z-axis.
The stage was not a single layer. Instead, it had multiple levels, each interconnected and corresponding to a different phase of the performance.
From the human side straight to the Old World, and even connecting to the lesion's outer core, all of it constituted the stage's vertical space.
Even the Duke was