This rule had been issued over four thousand years ago. For the five hundred years following the end of the Immortal-Demon War, the human race had still exercised restraint. But after those five hundred years, both the human and demon races tore up the agreement one after another, each claiming the other side had struck first. Neither accepted the other's version, and the dispute had only grown fiercer to this day.
This was hardly strange. Upon reaching the Nascent Soul Realm, cultivators' cultivation speed slowed considerably. If Nascent Soul Cultivators wished to break through, they could either devote themselves wholeheartedly to secluded cultivation, though that took a long time and easily led to a bottleneck, or seek out Ancient Cultivator Abodes, forbidden grounds, Secret Realms, or Small Worlds. Yet the number of Nascent Soul Cultivators in the Eastern Fence World kept increasing. Not every cultivator happened to encounter a Secret Realm, forbidden ground, or Small World opening. What, were they supposed to crawl back into their abodes and obediently cultivate in seclusion for centuries?
The South Sea abounded in Demon Beast resources. Even after advancing to the Fourth Order, most Demon Beasts could not assume human form. At times, they would accidentally wander into cultivators' territory and slaughter low-level cultivators, giving the human Nascent Soul Cultivators the perfect excuse to wipe them out under the banner of slaying demons and eliminating evil. They could obtain a batch of Cultivation Resources to speed up their cultivation while earning themselves a fine reputation as well.
From the Demon Race's perspective, if they wished to advance further, they either needed miraculous spirit pills or had to devour high-level cultivators. The Sea Clan and Barbarian Race were much the same. Their living environments determined that the Alien Races could never coexist peacefully with the