New Legend of White Snake Lady

The story is set in the Southern Song Dynasty.
A female white snake demon, Bai SuZhen, dreams of becoming a goddess, so she takes on human form and goes to the human realm. There she meets a green snake demon, Xiao Qing, who causes disasters in the area she lives. Bai SuZhen holds her captive at the bottom of a lake, though she promises the green snake that she'll come back in three hundred years to free her.



After three hundred years she keeps her promise and frees her. They become sisters. Then they meet a sorcerer called FaHai who believes that every demon should be eliminated. But FaHai also knows that Bai SuZhen is already in the process of becoming a goddess. He can't eliminate her immediately so he vows that he will if he sees them again.
Bai and Qing rested in a half world called Ban Bu Duo where they try to do good things by bringing rain to a places that hasn't had any water for three years. But Qing caused a great disaster which almost flooded the whole town! Bai, sadly, loses her chance of becoming a goddess, but Guan Yin informs her that she may have another opportunity.
However Bai and Qing have accidentally brought a scholar Xu Xian and his friend to the demon world. Bai has to protect them from the demons. After the battle with the Leader of the underworld, Xu Xian confesses his feelings for Bai, claiming that from the first time he saw her it was like love at first sight. But in order for a human to go back to the human world they have to be knocked by ghosts who will make them forget everything. Xu Xian knows about this so he avoids getting knocked and is about to go into the other realm when FaHai tricks him into being knocked.
Now Xu Xian is back into the human world but has forgotten everything. Since he and his friend went through the portal separately they land in separate places. There Xu Xian meets many new people.
Soon after Bai takes the final step to becoming a goddess which is to collect human tears. Bai sees Xu Xian with another girl and assumes that they are a couple. The former green snake, Xiao Qing, figures that Xu Xian got knocked by the ghosts, but also realises that when Xu Xian and Bai meet, Xu Xian will again fall in love with Bai. They got married, opened a medicine shop and lived happily.
But since demons and humans aren't supposed to marry, the town was struck by a plague and it was soon on the verge of becoming extinct. Bai, Qing and FaHai finally agreed to a truce and obtained the magical herb needed to help the population.
Later Bai gets pregnant, but Fahai continues to try to eliminate her and Qing.
On the fifth day of the fifth month, the Dragon Boat Festival is held. On that day demons revert to their true selves. Bai thus decides to take Qing and Xu Xian back to Ban Bu Duo, but Xu Xian falls for FaHai's tricks yet again and Bai shows her true self, scaring Xian literally to death! Bai retrieves the herbal medicine and brings Xian back to life.
But after giving birth to a son Bai can't control herself anymore and is forced to tell her husband the truth about her origins. Xian kindly accepts her, but Fahai then attacks the weakened Bai and holds her to eternal captivity in the Leifeng Pagoda.