Abyss Kingdom

Thirty years ago, the "Gate of the Abyss" opened around the world, and the "deep erosion energy" released compressed humanity to the last thirty barrier cities. Outside the city is "eroded soil", where the rules of reality are distorted and monsters are rampant. Gods are parasites that feed on human beliefs. In order to protect humans, the Great Summer Court chose to destroy itself, leaving a buffer period of thirty years - now the deadline is approaching.