In ancient times, King Yu completed his great task of controlling floods and hid a map of mountains and seas in King Yu's temple in the fairy world. Two hundred years later, the map of mountains and seas disappeared, and the fairy world fell into chaos. The eight guards with extremely small powers who were responsible for guarding the outermost part of the Temple of King Yu received a divine message from King Yu, ordering them to immediately cross the gate of the ancient world and go to Huainan to find the child prodigy who could resolve the chaos in the fairy world and bring him back to the fairy world 16 years later to solve the mystery of the missing mountain and sea map. The eight immortals traveled back to the North Mountain of Huainan and discovered through observing the sky that a child prodigy was about to be born in the Huainan Palace. Unexpectedly, the king of Huainan, Liu Chang, brutally killed the family of Jingchou, the daughter of the former rebel Wang Yingbu. As a result, Jingchou's grievance soul lingered and entered Liu An's body. Liu Chang, the king of Huainan, always guided his son in the direction of revenge. The Eight Immortals taught Liu An various spells and taught him how to behave. Liu An's character showed duality. Liu Chang was accused of treason, and his whole family was arrested and sent to Chang'an. The Eight Fairies could only watch Liu An leave.
Liu Chang was found guilty and was sent to Shu County. Liu Chang committed suicide on the way. Although Emperor Wen of the Han Dynasty killed the county magistrates along the way, Liu An and others were placed under house arrest. Four years later, Emperor Wen of the Han Dynasty made the three Liu An brothers marquis. Liu An used the pressure of public opinion to force Emperor Wen of Han to restore his title of King of Huainan.
Liu An returned to Huainan and wanted to fight, but was stopped by the Huainan Prime Minister and the lieutenant. The Eight Fairies wanted to use their magic power to exorcise Liu An's inner demons, but found that Liu An's inner demons had grown stronger. If they had to exorcise them, Liu An's life would be endangered, so they had to give up. One of the eight strange immortals left behind and transformed into Liu An. The other seven took Liu An to the ancient world. The crazy girl followed, and the nine people began their journey to rebuild the ancient world.
