Many years ago, he decided to be a Lieyaoshi (Yōkai Chaser), he chose Hei Shan ("Black Mountain" literally) as the start of achieving his dream. Yan Chixia was very young that time. And Hei Shan was a old hill, where lived older monsters. They had a primitive life-simple, but in the atmosphere of slaughter. He had gone through duels one and another. All the villagers were terrified of Hei Shan and Lan Ro Temple.
Many years later, rivers on the foot of the hill is faced with a serious drought, and the villagers are forced to find a new source of water on the demon-infested mountain.That was when Ning Caichen came to Hei Shan.
Finally, Yan Chixia and the tree ended in common ruin. Lan Ruo Temple, which revealed to be Tree Demon's dark art, along with Nie Xiaoqian, disappeared from Hei Shan.
