The ancient Emperor Yu used mountains and rivers as locks, inscriptions as codes, and town objects as keys to construct the "Yu Gong Seal System" to seal ancient ferocious beasts.
Thousands of years later, when Dayu's seal was broken during construction, the gods and beasts in the Classic of Mountains and Seas were awakening in the cracks of modern cities.
A scholar who can interpret ancient inscriptions is involved - in the process of repairing the seal and fighting against the awakening, he gradually discovers that he may need to become the new seal itself.
