The Book of the Boundless Mountains and Seas

On this ancient and mysterious land, countless legends tell of strange beasts. Some dwell deep in the mountains, some hide in lakes and seas, and some lie sealed beneath ruins, waiting for the day they can see the light again. For thousands of years, the balance between humanity and demons has teetered on a fragile edge. Sacrifices, seals, and campaigns to subdue demons have all sought to imprison these beings beyond human understanding within the pages of history.

But all of this is destined to crumble.