The fox master of Qingqiu has acquired a daughter, Li Yan, who has been practicing for 500 years and transformed into a human for the first time. When she sneaks into the human world, she accidentally meets Bai Chen, the young master of the fairy world. She fell into the other person's gentle mask and fell in love with each other, but she didn't know that this was an elaborate scam. In order to control the demon world, Bai Chen deceived her into the fairy world, imprisoned her in the Demon Locking Tower, and tortured her by extracting bones, skinning, and corroding the demon bones. The sweetness of the past was extinguished and tortured in purgatory.
Li Yan was devastated and his family was destroyed: his mother suddenly passed away after hearing the bad news, his eldest brother secretly broke into the fairy world to save his daughter and died, his father was seriously ill and could not afford it, his second brother forced himself to take charge of the demon world, and his third brother, in order to find a way to save his sister, sacrificed his life's cultivation and beauty to make a deal with the supreme king of the demon world, Jun Ming.
It turns out that Jun Ming had turned into a child due to cold poison. When he was about to die, Li Yan, who was still a little fox, gave him a spiritual fruit to extend his life. This favor became the reason for his action. Jun Ming broke through the boundary to rescue Li Yan, but it triggered a war between immortals and demons. The demons and demons formed an alliance to fight against the immortals, but they were forced to recuperate due to the loss of their fighting power.
For three hundred years, Jun Ming devoted all his treasures to help Li Yan reshape her bones. She lost her innocence, honed her practice with deep-seated hatred, and finally became a naturally charming but extremely powerful being. In order to seize the Nuwa Stone to save his second brother and restore his third brother, and to avenge Bai Chen, Li Yan brought the power of the demons to the immortal world, destroyed Bai Chen's cultivation, severed his muscles and bones, and threw him into the demon purgatory for eternal torture.
After taking revenge, Li Yan's heart was closed, and Jun Ming started the long road to pursue his wife with ten thousand years of sincerity. Five hundred years later, the four realms are interconnected and coexisting peacefully. After Jun Ming's 9.9 Billion confession, Li Yan is finally willing to stay together, and the four realms congratulate him on his wedding day.