It is said that there is a restricted area at the end of the upper river basin. Deep in the restricted area there is a bridge named Naihe. On the bridge head, there are two flowers, one red and one blue. As long as you absorb the power of these two flowers of the other side, you can transcend ascension and truly achieve immortality, which is the lifelong goal of all immortal cultivators. But beside the Naihe Bridge, there were Tang Xiao and Fan Yunxian who claimed to be the envoys of Naihe, as well as the bridge guard Meng Po, the Ten Palaces of Hell, and others. Thousands of years ago, the Upper River Basin had tried to get involved with this terrible power more than once, but they were never the match of the bridge guards. Gradually, people began to find other ways to enter the depths of Naihe Bridge besides the restricted area.
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.