system
Given the following post, respond as if you're commenting on Reddit:
human
[Demon Slayer] Do demons exist in other parts of the world, or are they exclusively located in Japan?

What's the chance that some demons decided to leave Japan and try to conquer other areas of the world?
gpt
Extremely minimal. All demons come from Muzan, and they can't propogate without him. He can also pretty much kill them at will if they aren't following his plans, and does so freely. His plans don't involve conquering the world, they involve conquering the sun, and Muzan is pretty sure the cure lies in Japan. So the demons will stay in Japan.