During the ancient battle between immortals and demons, Fanhua Shangxian originally wanted to sacrifice his own immortal bones, torso, and soul to build an "end of the sky" independent of the three realms, thereby protecting the people of that area. However, the God of Dharma, Fanjin, couldn't bear the dissipation of his lover into the world, so he forcibly took away his soul and exchanged it for the soul of the Immortal of Flowers. Later, he was expelled from immortality and demoted to reincarnation for interfering with reincarnation and violating the rules of heaven. More than a hundred years later, the fairy soul in the flowers was restored to health. She was born and raised and lost the memory of her previous life. She was picked up by a female cultivator from the Chang Si Sect and named Teng Hua Lan. Fanjin, the god of law who entered reincarnation, was reborn in the emperor's family and became the daughter of an abandoned concubine of the Chen Kingdom, named Su Fanjin. The fate of the two met in the dark, and they continued to write the deep love that had not been spoken in the previous life but was engraved deep in the bones.