The upper realm's 3,600 domains trembled, invaded by an overwhelming demonic aura, accompanied by an extremely cold and supreme aura permeating the area.
"Is this... the supreme realm?!"
In an instant, upon sensing this aura, everyone in the upper realm panicked, including those peerless beings of the Questioning Realm.
"Could it be that the Demon Emperor of the Underworld has awakened?!" Gu Chen was also shocked by this realization.
The Demon Emperor of the Underworld matches the supreme realm of the upper realm, and if so, it would indeed be a catastrophic disaster for the upper realm.
"Not good, Evil King Mountain!" The next moment, Gu Chen's expression changed, sensing a tremendously powerful aura rising from the Evil King Mountain in the East Profound Region, a forbidden area for living beings.
Not only that, all the living being forbidden areas in the 3,600 domains of the upper realm were in uproar too.
