Before the Demons arose from the depths of Hell, the world was at peace. It was alive and green. People walked about their daily lives, going to work and to do their grocery shopping, or even hanging out with their friends. Now-a-days no one has any friends, or leaves their house. The only reason they would leave is to find food.
When the Demons first came to Earth and began destroying it, people thought that since Demons existed, Angels did to. They thought the Angels would come and rescue us, but they didn't. Not in the ten years the Demons have been here. The Angels have abandoned us.