Bulwark and the Beavers
When all the action of the Farming World was concentrated in the Northern Capital, the rest of the Northern region was being combed by a group of people. Initially, Jin had sent several waves of Pandarens to attack the various Demon Rat hideouts, Demon Rat infested towns and even their supply bases.
The System had verified that there were a few Demon Rats that ran away but it was not an issue as the Southern Stars Organisation from the Southern Region had been deployed to handle any stragglers from each of the towns. It was especially easy when the System practically had an all seeing eye based on their contract with the spirit of the land. (Not to mention the spirits of the land rejoiced when they felt the noticeable effect where there was no more mining of the lifestream of the Farming World.)