On a moonlit night, Ning Caichen was on his way when he tripped over a white bone in the black forest and was chased by a fox demon named Nie Xiaoqian. On the way, he saved the severely injured deputy general of the Imperial City Bureau, but was rescued by the demon catching expert Yan Chixia and hid in Lanruo Temple. Vice General Toning collected a blood letter from the officials and gave it to the leader of the Imperial City Department, Zhuge Jing. Nie Xiaoqian was driven away, and Yan Chixia left a scripture for Ning Caichen. Nie Xiaoqian was injured and reported it to Master Huai, who ordered him to win the heart of Ning Caichen's son. Ning Caichen sought out Zhuge Jing, but the fallen scripture caught the attention of the Kunlun Sect's Zhiqiu Yiye, who assisted him in entering the Imperial City Office to deliver the blood stained book. Ning Caichen was imprisoned for trespassing, and Zhuge Jing ordered his deputy to redeem the body. Returning to her residence, Nie Xiaoqian's portrait suddenly appeared, sitting by the window staring at him