Bai Suzhen, a snake demon who has practiced virtue for thousands of years in Mount Emei, was enlightened by Guanyin, practiced kindness for thousands of years, and finally transformed into a human form. In order to achieve enlightenment in the mortal world, Bai Suzhen went to the human world to practice. At the Lantern Festival Temple Fair in Lin'an, she accidentally became a sister with Green Snake, who changed her name to Xiao Qing. Bai Suzhen and Xiaoqing met Xu Xian, the handsome "Xinglin weirdo" on the Lantern Festival. Xu Xianxuanhu's character of helping the world and saving people, and Bai Suzhen's kind and pure nature moved each other. After experiencing a series of storms such as the sea of fire during the Lantern Festival, the centipede spirit that subdued demons, the horror of the West Lake cruise ship, and the poisoning of pufferfish spirit at the White House family banquet, the two fell in love. Although Xiao Qing is dissatisfied and Xu Xian's junior sister has many affairs, the lovers eventually become a couple of gods and immortals.
During the Dragon Boat Festival, Bai Suzhen drank realgar wine and took on a demonic form, frightening Xu Xian to death. Bai Suzhen did not hesitate to spend hundreds of years practicing magic, risking her life to steal the fairy grass and save Xu Xian. Good things come hard, and true love goes through tests. Xu Jiaorong falls into a coma after accidentally eating a green dumpling containing Bai Suzhen's blood. Bai Suzhen wanted to spend 500 years of mana to save Xu Jiaorong, but was blocked by the heavenly soldiers and generals. She was misunderstood by Xu Xian and was unable to escape back to Emei Cave. Later, he experienced a disaster when the dark messenger from the demon world tempted Xu Xian to transform into a demon in order to dominate the demon world. He finally turned the danger into safety and returned to peace in the four realms of humans, monsters, immortals and demons. After experiencing various disasters and adventures of the truth, love makes people grow and change. Xu Xian and White Snake are deeply in love and cherish the opportunity to be together even more.
Fa Hai is obsessed with subduing demons and promoting Dharma, and believes that humans and demons cannot fall in love. Forcing Xu Xian to stay in Jinshan Temple to avoid demons and cultivate, Bai Suzhen and Xiao Qingshui flooded Jinshan Temple, violating the rules of heaven. After Bai Suzhen gave birth to a son, Shilin, she was suppressed by Fahai under the Leifeng Pagoda. Fa Hai bluntly said that the West Lake was drying up, Leifeng Pagoda collapsed, and Xu Xian and Bai Suzhen met again.
Ten years have passed and young Xu Shilin has begun to grow up. Can Xu Xian and Bai Suzhen reunite?
