The little white snake Bai Yaoyao first became human and felt ignorant about everything in the world. Zi Xuan, who was cultivating immortality in Jiuxi Mountain, did not understand but fell in love with Xiao Bai. After going through life and death, Zixuan was reincarnated into the pharmacist Xu Xuan. He met Bai Yaoyao at the Peach Blossom Festival. After many twists and turns, the two finally got married. But Bai Yaoyao stole the immortal to save Xu Xuan...