The Wei Wu Army headed to the west. As Nangeng City was located at the borders, they set off at sunrise and had reached the border between the North Region and the West Region when the sky was completely lit up.
The Wei Wu Army did not stop as they were about to reach the first barrier of the Black Feather Army that night.
The barrier was not set up because of the Wei Wu Army. It was set up to block the Aristocrat Army who was sent by Wen Zaifou to attack the West Region.
Initially, when Lu Shu heard that Wen Zaifou wanted the aristocrats to take down ten fortresses in the West Region, he gloated at their misfortune but did not overthink. Apart from Lu Shu, the aristocrats also did not overthink. They thought that Wen Zaifou's purpose was to reinforce their memory.