Thirty years ago, Tokyo was destroyed in a massive earthquake. Most people have moved on to a new capital, Shinto, but a string of bizarre murders and supernatural events keep occurring in the ruins of the old city. The only one with the ability to see through to the heart of these mysteries is the enigmatic Mayuki Hyuga, a boy with extraordinary detective skills and powers that even he doesn't yet understand. Together with his guardian and butler Seiran Shinano, Mayuki must not only help the police solve cases, but also uncover the secrets of his lineage.