As time marches on, relics of the past are cast away and the people of Japan turn their attention to the marvels of modern technology. In year eleven of the Taisho era, Akitsu Somegorou the Fourth visits Tokyo to partake in a party hosted by the Nagumo, a famous spirit-hunting family. Like Akitsu, the Nagumo family slay demons for a living, but with the fear of demons slowly fading from the hearts of man, they've joined hands with their foes in a bid for survival. As the Taisho arc unfolds, the Imperial Capital will become the stage for a battle between the humans of Tokyo and the demons scheming behind the scenes.