C104 Seek Qualification
Before Ling Yanxiao left for the Lingzhou Prefecture, Jiang Ruoshui gave him a lot of preparations. She even asked for an imperial edict from the emperor telling him how to get the key from the River of Weakness.
The emperor didn't expect Jiang Ruoshui to pave the way for Ling Yanxiao like this. If Ling Yanxiao could really help Third Prince retreat