Mu escorted Lu out of the city in episode 2 1. According to relevant public information, Dongwa took this opportunity to leave the city smoothly with Mei Yingsu, while Liu Hemu was preparing to say goodbye. Mu knew that the gate must have been blocked at this time, so he decided to personally escort Liu out of the city. Liu, who didn't want to accept Mu's help, had to nod in agreement, which was the best choice for leaving the city at present.