It was Taisho era. Mikagura Tokito was the director of a detective agency, which has solved a lot of cases. One day he disappeared involved in an accident.Tomoe, Shigeno, and Chizuru, who adored him, got anxious about him. Hearing that Shigeno`s elder brother had seen him at a church in a foreign country, so they travelled there hoping to meet him again.
However, it was a dead body of a priest in a church which they found there. Furthermore, they found his arms had been cut off from his body. Because they thought his death had something to do with Tokito`s disappearance, they would investigate the case. Suddenly they were attacked by men. Being involved in danger, they tried to find Tokito but will they find him?