@啊啊是谁都对 Before long long time there was completely no tourism in Halloween Town at all. Ghosts and humans were enemies. One day one ghost from Haunter Committe gave a suggestion to the Ghost King on that time, that sometimes humans themselves also want to find some exciting and scaring things, so we can open a travel place named "Haunted House",  humans get scared voluntarily and we can also get the fear of humans more easily. At the starting time the Ghost King doubted, because he didn't think people could once "want to be scared", but still agreed. He took out a piece of land of Halloween Town for this plan. But finally the ghosts found it is a very effective idea to get the fear of mortals. So since that time that piece of land was open to humans, ghosts and humans were no more enemies. But the core place of Halloween Town still only allow ghosts

回复 @啊啊是谁都对：Then they will be driven away. But humans who have high sincerity and courage and really want to make friends with ghosts perhaps will be given the right to live in Halloween Town