Mikagura Detective Agency

At the Taisho era, Mikagura Tokito was the manager of a detective's agency, and he was quite good at that. One day he dissapeared in an accident. tomoe, Shigeno and Chizuru, after heared from the big brother of Shigeno that Mikagura had been seen, they decided to go there. But what they found was a crime, and they tought that that had something to see with Tokito, they suddenly got attacked by a man and they get envolved in continuos danger.