A thousand-year-old lotus cultivator from the Yaochi came to earth in human form, fell in love with a scholar and gave birth to twins, but was locked up in the Immortal Pagoda because the queen wanted to refine the beauty elixir. After losing their father, brother and sister He Xinxin and Chen Yijun worshiped the Flower God as their teacher and embarked on the road to save their mother. On the way, they met the Snake God and the Water God, and joined forces to fight against the Queen's imperial power. The flower god, snake god, and water god died one after another, and the queen's daughter also sacrificed for atonement. In the end, the brother and sister sent their mother's soul and the remnant soul of Feng Yu to the lower world for reincarnation, and silently guarded them as friends, composing a tragic immortal legend.