"Different worlds have different scenarios. I'm not even sure if the people who died on my world went someplace else or are still alive. Going back is completely out of the question, since most of the place has become a wasteland, demons fighting for control over one another."

Why is that exactly? Well, if Alastor wants to know the truth, Marie will tell him most of it. With the exception of one particular fact. "It gives them enhanced physical strength and elemental powers. For example, I can conjure up flames and stone. The demons are also immune to the harmful rays of the sun, thus they couldn't be turned to stone. However, one's sanity is often in question, as demons are full of primal vigor. They eat more, become enraged easier..."