There is a deep ocean in the East China Sea. In the third year of Jingyuan, a hole opened in the bottom of the East China Sea, and "Yuan Qi" gushes out. Wherever the Yuan Qi passes, people and animals go crazy, vegetation withers, and the land turns black. "Abyss beasts" are condensed in the abyss energy. They feed on fear and disperse when exposed to iron. However, they reunite after being dispersed and will die only if their "core" is broken.
