Three thousand years ago, Yu the Great sealed the mythical beasts of the Classic of Mountains and Seas, recording their names in the book. Three thousand years later, the seals are weakening. Taotie devours cities, and Gudiaos cry out beneath the moon. The human world has become a hunting ground for mythical beasts. Su Yan, a restorer of ancient texts, accidentally awakens the book’s guardian spirit and is forced to embark on a quest to restore its incomplete pages. He must travel across the mountains and rivers described in the book, persuade the mythical beasts who refuse to return to their proper places, and fight a mysterious organization bent on rewriting the ancient texts and overturning the Three Realms. Along the way, he joins forces with the heir of the Black Bird clan, who bears a blood feud. As they struggle between trust and betrayal, and stand at the edge of life and death, he uncovers the truth behind the ancient war of the gods: the keepers of the book have never been protecting a text, but the balance that allows humans and mythical beasts to coexist.
