In the Taisho era, Mikagura Tokito, the renowned director of a detective agency, mysteriously vanishes after an accident. Worried for his safety, his devoted followers Tomoe, Shigeno, and Chizuru pursue leads that lead them to a foreign church. However, their hope of reuniting with Tokito is shattered when they discover the lifeless body of a priest, brutally dismembered. Determined to uncover the truth behind his disappearance, the trio launches their own investigation into the murder. As danger lurks around every corner, their quest to find Tokito takes an unexpected turn. Will their relentless pursuit lead them to their beloved director or further into the treacherous depths of the unknown?