Outer Realms.
The Heaven-Connecting Path had dissipated, and the formation had weakened, though it was not entirely gone.
Without anyone to control it, the Yin-Yang Wuji Formation would naturally cease to operate as soon as there was no longer a supply of physical bodies and souls. However, Human cultivators kept trying to force their way into the formation in search of opportunities, only to be shredded to pieces. This continuous supply of energy kept the formation running.
Chapter 164