The Era of Eight Emperors Extra

Before the devil came, the world was still called Tianxia. After the devil came, the world was called the realm. Outside the boundary is a void of space, where all matter and "energy" that are not accommodated by the main world accumulate. The world is composed of countless small heavens and large heavens. Each heaven is a world and has its own rules. Some heavens are filled with living beings, some are filled with dead spirits, and there are countless heavens. But matter is not eternal, and neither are the heavens. New worlds will be created and old worlds will perish, but there are some exceptions. However, these exceptions have become stronger with the passage of time, becoming a barrier for the inside to defend against the outside.