The play tells the story of a flower demon who had been sleeping for a thousand years in Xiquan Temple during the Republic of China. She quietly awakened and broke through the seal, transformed into a human girl, seduced men everywhere and absorbed Yang energy. The righteous old Taoist was injured while chasing the flower demon and was rescued by the young Yin Tianchou. By mistake, Tianchou's sweetheart Feifei was killed by the flower demon. Tianchou was heartbroken when he knew about it, so he followed the old Taoist to learn Taoism and finally killed the flower demon. A few years later, the tree demon Green Granny suddenly appeared with a little flower demon who looked very similar to Feifei. Tianchou was puzzled, so he went alone to ask the reason. Who knew that there was a bigger secret behind all this.