Limited

When demon assassin Cynder Ash is sent into a human town called Delta on an exclusive mission, she didn't expect she would have to make friends while there. In the human's messed up world, making friends with one of the demons that wreaked havoc on their world is a difficult thing to do, but it may be one of her only chances at getting what she came into Delta to get in the first place. The four magic keys. But will Cynder realize that maybe, just maybe, the humans might need them more than the demons, or will she let the human world perish?