Hilda is a juvenile 22 year old living a boring loathsome life that's going no where. The only thing bringing light into her life is the ability to see, and exterminate ghosts. A hobby that she gets serious intimate pleasure out of doing. After the moon turns blood red, the gates of hell open, and the world is flooded with ghosts, Hilda is contracted by the devil to exterminate the ghosts flooding the world, and stop this event known as the "Devils Moon"