The Eye of River Styx below the Reincarnation Division could allow the Netherworld to mobilize a large amount of reincarnation energy at the critical moment to help the Netherworld army revive quickly. Under the current circumstances, a ghost general might have to be killed more than ten times before his true spirit could be completely obliterated.
Based on the fact that the Netherworld had two million troops, and that every wave of troops would die ten times, that would be equivalent to 20 million troops.
The worst thing was the problem of the army that had charged in.
The army that had charged in was also in a mental body state. As long as they were killed, their true spirit would be guided to the Reincarnation Division by the power of the rules of the Netherworld. This rule power was a manifestation of Houtu's will after she turned her body into the Six Paths of Reincarnation. As long as one entered the Samsara Small Universe, they had to follow this rule.