In the dark cave, the White Snake (voiced by Zhang Zhe) practiced hard but failed. Seeing this, Xiaoqing took off the jasper hairpin on her bun and held the White Snake in her hand. At that moment, the memory of five hundred years ago was instantly awakened. Five hundred years ago, the monarch of the late Tang Dynasty was incompetent and mediocre. The national teacher who mastered the evil arts covered the sky with one hand and ordered the people of the world to catch snakes and practice the law. In order to save the tribe, the White Snake took the risk of assassination, but was frustrated and lost her memory. When she woke up again, she found that she was rescued by a village specializing in catching snakes, and the timid but kind young man Xu Xuan (voiced by Yang Tianxiang) attracted the attention of the White Snake. At the same time, the national teacher sent minions to search for the whereabouts of the White Snake, and the snake tribe misunderstood that the White Snake had defected from humans and sent killers one after another. A marriage five hundred years later had already been concluded in this troubled time...