Why are all of us who transmigrated at the same time demons?

Loran transmigrated, initially thinking it would be a story of a proctologist transmigrating with 99 other characters, but unexpectedly, he found himself in every world as a demon, constantly worrying about finding a body that could function in the modern world.
Its only advantage is this mysterious space where memories, knowledge, skills, and souls can be shared.
So what if you're a demon? Even a demon can walk the path to supreme enlightenment.
Namo Mara Deva!