In the extreme north of the universe, this was a forbidden area of the entire universe.
For example, the Blood River, where the Dark Demon Descendant came from, was located in the northernmost area. It was desolate all year round and no one set foot in it. The water of the Blood River was enough to wipe out all existences below the Supreme level. Even if a Supreme came in person, they would not dare to step into the blood river rashly.
It was rumored that the river of blood contained a patriarch blood demon from thousands of chaos cycles ago, who was incredibly powerful. However, no one could say for sure if this rumor was true.
There were a total of nine forbidden places like the Blood River in the northernmost part of the universe. The huge Star Domain in front of the Hall Master of Cosmos Temple was one of them.