Two thousand years ago, in order to seal some indescribable existence, the Chinese gods collectively sacrificed their gods and built the "Kyushu Barrier". The divinity dissipated, but the divine thoughts turned into countless fragments ("divine relics") scattered in the world. Outside the barrier are the real chaotic demons, and within the barrier is human civilization. But the barrier is slowly disintegrating, and the leaked "aura of chaos" has given rise to all kinds of weird things in modern cities.
