There are eight desolate fairy lands outside the mortal world, which are entered through the gate of life and death, where the four races of dreams, blood, humans, and demons coexist. Seven hundred years ago, the two Mengxue clan disappeared mysteriously. The human clan dominated the capital Jingyang City, and the demon clan was forced to become slaves. In order to consolidate their rule, the three major clan groups of Sha, Mu and Liu were divided and ruled along the Linghe River. More than seven hundred years later, the control ability of the imperial capital gradually weakened, and various clan groups gradually became independent and fought with each other. The empire's rule was chaotic and its politics was dark, which was the "post-imperial period". At this time, the Dream Goddess is reborn and returns. The vampire tribe is gathering strength in Penglai Fairy Land to prepare for its return to the country. The oppressed demon tribe is hiding in Qise Lake to prepare for revenge. Is this a disaster that will destroy the country, or is it the last chance of life given by God? Behind the swarming history, the entanglement of love and hatred between various ethnic groups, the reincarnation of cause and effect in the past and present life, in the end, will we be lost again and escape, or will we finally reunite? ····