Legend has it that there is a book of dreams in the world, which has been recorded since the beginning of heaven and earth, and is updated with the creation of all things. This book connects the world of Liuhe and the Eight Wilderness Continents, and introduces spiritual mediums to balance yin and yang. If you get this book, you can gain the power to control heaven, earth, time and space. Later, in order to prevent the world from losing balance, the Book of Dreams was divided into eight parts and divided into ninety-six chapters scattered in the eight realms of the sky, where it goes is unknown. So the people in the eight realms began a thousand-year battle...
Ling Yin is the name of the gatekeeper who controls the entry and exit of the two realms. He often holds the key clues to collect the fragments of the book. Everything in the world revolves around them. The reason for the story is that the spirit of this term died unexpectedly, and Lu Yusaki, a woman from the human world, had to be temporarily appointed to take office in advance. Her unexpected intervention is about to open the most ups and downs chapter in the history of the Eight Realms...