Su Yin is about to become the successor of Dayue Prefecture, which is completely unexpected to her. After being observed by the powerful cultivators of Dayue Prefecture, Su Yin's cultivation talent was deemed unparalleled, which is why the Prefect chose her.
As the envoy of Dayue Prefecture, Li Yuxue's mission this time, aside from dismissing Lu Hua, also included ensuring Su Yin's safety.
On her way here, Li Yuxue had already learned about Su Yin's infatuation with that man named Li Zhongnan, so she had arranged for someone to monitor Li Zhongnan's movements at all times.
It was also Li Yuxue who arranged for Su Yin to meet Li Zhongnan.
Being a higher-tier prefecture, Dayue Prefecture holds tremendous control over the nearby cities. Even Lu Wenjing and Lu Hua had no idea how many people from Dayue Prefecture were stationed in the city.
So, when Lu Hua attempted rebellion, the Prefect of Dayue Prefecture learned of it immediately.