Within each world group, among the myriad of civilizations, there must exist a spatial rift leading to some perilous place in the Primordial World.
These rifts are inevitably clustered in a small area within the perilous place, with distances ranging from as close as 100 to 200 kilometers and rarely exceeding 5000 kilometers, essentially making them neighbors.
This is precisely how world groups are classified.
No one knows why such a peculiar situation occurs; many civilizations attribute it to the Power of Law.
Under normal circumstances.
To travel from one civilization in a world group to another, one must use the Primordial World as a transit point.
To move from one world group to another, it may require transitioning through multiple civilizations.
Traveling from one World Domain to another is extraordinarily far, and without Venerable Level strength, doing so is virtually akin to courting death.
