Nueno Mesuke, better known as Nube, is a school teacher who does more than just teach. You see, Nube's left hand is a huge, nasty-looking demon's claw. He uses it to get rid of malicious demons, ...

When a young boy begins behaving strangely, shocking truths emerge as the story unfolds through the eyes of his single mother, a teacher who is believed to be responsible, and the child himself.