Yan Chixia's master sent him to Black Hill to train in the arts of demon hunting. After capturing an attractive female demon, Nie Xiaoqian, Yan falls in love with her and realises that his master sent him there to make him learn how to control his emotions. Xiaoqian also falls in love with Yan, and while he feeds her candy, she says she will fall in love with anyone who fed her candy. After some time, she begs him to kill her because humans and demons are not supposed to be together. Yan stabs her with his magic dagger, which does not kill Xiaoqian, but causes her to lose her memory of their relationship. Yan arrives late for a battle against the Tree Demon, Laolao, and sees that several of his fellow demon hunters have already fallen. The last one, Xia Xuefenglei, embeds his arm into Laolao and tells Yan to chop it off, thereby banishing Laolao from the mortal world.