Because it was handed down by the same person as Di Renjie. As long as there is enough evidence, we can find out all kinds of causal relationships from the nuances, so as to know the ins and outs of the whole thing. The reason why the Hidden Dragon King beat Uncle is because he and Di Renjie were handed down from one man to another in the mountains. Tian Tongdi Renjie is a costume fantasy drama produced by Beijing Oriental Star Culture Media Co., Ltd., directed by Li Wenlong and Zhaoyi Ye, starring Allen, Adi, Junyan Jiao, Miao Jie Jun, Li Jinrong, Rola Chen, Wang Yu, Zheng Xiaoning, Guan Xueying and Li Ruojia. The play tells the story of Bianzhou, which was deeply appreciated by Yan during the ruling period. It won an award for assisting Di, and repeatedly solved unsolved cases, making it famous all over the world.