Wufu clearly understood that as the season transitioned into winter, if the wars dragged on without progress, it would be of no benefit to Beiyan at all. Capturing the Shu region quickly would be much better for the soldiers, as having a place to shelter from the cold is far superior to freezing outside.
From another perspective, if Beiyan were to capture the Shu region first, recruiting soldiers here would be futile, as the war would end before they arrived. It might even result in fewer sacrifices.
Therefore, she needed to activate the lines from this side, fully cooperating with Beiyan to capture all the cities in the Shu region as swiftly and with the least damage possible, avoiding greater sacrifices.
Wufu handed the token to Liu Jin, carefully instructed him, and then let him go.
