Did you know there was an organization that is protecting the world from the harm? Its name is Ratatoskr.
Their job is to assist "Spirits", an unknown beings that causes destruction to wherever they go, whether they intend to or not. And they help those "spirits" adjust into normal life.
This is a story of a boy, Itsuka Shidoh, and his daily life, where he was forced into attempts into leading the spirits into his regular ordinary way of life and where they lead... his?