Hang on I'm very lost here, So nine headed demon's plan is to destroy the universe so he can go back home to chaos??? What is exactly chaos in the universe??
I think it’s something like that. From what I understood the universe they are in is like a small bubble in which everything is in order. Outside that bubble there should be chaos. I think xaing liu thought that the only way he would be able to go back to chaos is if he destroyed the universe they were in for a while until he’d be able to leave.