At the beginning of the Taisho Era there was a man in Tokyo running his private detective agency, and Mikagura Tokita was his name. Three young girls attracted by his genius joined him to help with his job. Will there be any culprit who would surpass their united wits?

At the beginning of the Taisho Era there was a man in Tokyo running his private detective agency, and Mikagura Tokita was his name. Three young girls attracted by his genius joined him to help with his job. Will there be any culprit who would surpass their united wits?