Led Astray by Love S01 E22 Episode 22

Pei Shuangyi gets transmigrated into the setting of the manhua she was reading. There, she accidentally and unknowingly meets and befriends Xiao Yi, the ruler of Baimin City. At the same time, the Grand Preceptor is dissatisfied with the ruler and wants to change the status quo. As they're both vying for power, what role will Pei Shuangyi play?