Within the 500-meter military zone of Donghua City.
In a massive space completely enclosed by layers of armor plates.
An elder was slowly making his way toward the depths of the space, pausing occasionally to cough violently, as if he was about to cough up his lungs.
With each cough, a series of roars echoed from deep within the space, sounding heart-wrenching and filled with resentment and misery.
Upon hearing these roars, a hint of sadness flashed in the old man's eyes.
Minutes later, he reached the deepest part of the space, where a several-hundred-meter-wide Array appeared before him.
Various symbols, runes, and engravings densely covered the ground, walls, and ceiling, forming numerous layers of colorful membranes that enveloped the space before him.
Beneath the membrane's cover, a dark figure crouched silently, trembling continuously and emitting bursts of roars.