[Machine Translation] A masterpiece mystery by the duo of a young lady detective and a sharp-tongued butler! Reiko Hosei, a new detective at the National Police Station, is the daughter of the world-famous "Hosei Group". She is currently working on a number of cases under the supervision of Captain Kazamatsuri, a sergeant of "Kazamatsuri Motors". When she returns home to her mansion, Reiko changes from her plain pantsuit to a dress and enjoys dinner, but whenever she comes across a difficult case, she consults her butler and chauffeur, Kageyama, about the whole story. The "butler and chauffeur," Kageyama, is the one with whom Reiko consults on every part of the case. Kageyama, while pointing out Reiko's lack of deductive skills with his outspoken tongue, brilliantly unravels the mystery. Includes a newly written short story!