The ancient mountains and seas are not myths, but a deleted world archive.
Shen Yan, a junior official in the Dayu Library, was only responsible for repairing the remaining scrolls. One night, while he was making a final note on the forbidden book "The Classic of Mountains and Seas", a black mountain appeared out of thin air outside the city. A baby in the mountain cried like a beast, and the long-lost nineteenth volume automatically appeared in the ancient scroll.
The imperial court was shocked, and Shanhaisi Fengshan entered the situation. Shen Yan was forced to step into the wilderness, only to discover that the "Book of Mountains and Seas" read by the world was just a fragment: the strange beasts written as monsters may have guarded the mountains and rivers; the absurd kingdom of gods may have hidden the truth of the old dynasty; beyond the erased mountains and seas, buried was an old case that could shake the world.
Every time he added a word, Shanhe woke up.
Every time he records a beast, he gets closer to the truth.
But the person who really wanted to tamper with Shan Hai was already standing deep in the dynasty, waiting for him to complete the nineteenth volume with his own hands.
