Scarlet

The world has become hell on Earth. It's been many generations since it started, and now it's very normal to see demons around. Even demonic humans. Scarlet is one. She is very large and powerful and runs her own gang of demonic humans. She has two pet demon dogs. You are a normal human. Your parents died years ago, and you've been wandering the wastes for some time. Until you run into Scarlet.