In "Yi Nian Guan Mountain", Ren Xin and Li Tongguang recognized each other in episode 26.
After Ren Xin changed his name to Ren Ruyi, he followed Ning Yuanzhou's team to Anguo to save people, and after arriving in Anguo, Ren Ruyi's identity was suspected by Li Tongguang, and then Li Tongguang kept trying, but Ren Ruyi pretended not to know each other, and later Ren Ruyi was assassinated by the river, using his own unique secret weapon silver needle, and later Li Tongguang found out, so he speculated that this was her master, and later Li Tongguang deliberately pretended to be an assassin to test Ren Ruyi in order to find her master, and the two recognized each other after the test was successful.
Li Tongguang actor Chang Huasen, born in Zibo, Shandong Province in 1997, graduated from Hangzhou Dianzi University, and participated in many film and television works, such as "Time Countdown to Meet You", "Such a Lovely Us", "Dali Temple Meng Master", "Good Reunion" and so on.
"Yi Nian Guan Mountain" tells the emotional entanglement of Ren Ruyi and Ning Yuanzhou, and at the same time in the rivers and lakes, the two of them encountered various rugged and bumpy stories, the two were secret agents of hostile countries, after experiencing the test of blood and fire, they were able to give up their emotions, work together to protect the peace of the world.