Yan Chixia (played by Louis Koo) fell in love with Xiaoqian (played by Liu Yifei) when she was young, but due to the responsibility of a demon hunter, he could only bear to part with her. He did not kill Xiaoqian, but caused her to lose her memory. He and Xia Xuefenglei (played by Fan Shaohuang) teamed up to deal with the Black Mountain Old Demon (played by Hui Yinghong), who sacrificed his left arm to seal the old demon. ...