Synopsis: After thousands of years of cultivation, Yindai, the snake snake, met the scholar Lu Dongbin and blocked the lightning strike for her when she encountered a catastrophe. Junior sister Tsing Yi opposes her union with Lv Dongbin, joins forces with senior brother Cui Ming, who loves Yindai, and is bewitched by Butterfly Jing, who covets Lv Dongbin's pure yang spirit; another classmate of Lu Dongbin, Jia Ren, covets his family property, and designs to be imprisoned. Separating the life and death of the two. Lv Dongbin loves Yindai deeply. He doesn't believe in shallow fate. He sacrificed his life to get out of the sky to get back the soul grass. In Chunyang Cave, he practiced pure Yang swordsmanship and kept guarding it, just so that Yindai could be resurrected. Never thought to release the magic of Yindai seal gracefully. After the evil side Yindai was released, she joined Pian Pian, Cui Ming, and Tsing Yi to harm Dongbin. Because Lu Dongbin accidentally swallowed Yindai's inner alchemy, he possessed a certain skill and died gracefully under the sword of Lu Dongbin. But the love between human beings and monsters is contrary to the way of heaven, and the way of heaven cannot be violated. Under the influence of Zhang Guolao and Han Zhongli...
