Actually, the territory of the Netherworld is vast, and its population surpasses that of the Three Realms combined.
Therefore, the number of cultivators in the Netherworld far exceeds that in the Three Realms.
Moreover, the inhabitants of the Netherworld are those who have died in the Mortal World, Immortal Realm, Demon Realm, and Devil Realm.
Before reaching the Heavenly Immortal Realm, their memories cannot awaken, leading to very slow cultivation in the early stages—some may never reach it in their lifetime.
If one in a thousand can reach the Heavenly Immortal Realm, it's considered exceptional.
Thus, the quantity of cultivators is the highest in the Netherworld.
However, at present, Xu Nian must have joss paper to enter Heavenly Thunder City.
But Xu Nian doesn't have any Netherworld currency, so he can only give up.
Just as Xu Nian was preparing to leave, a voice sounded.
"I'll pay for him." A woman walked over and spoke to the guard.
