A new chapter in the mystery series revolving around a female detective and her butler!

A new chapter begins in the popular mystery series that won first place in the Japan Booksellers' Award and sold over 4.2 million copies. The female detective and her butler join forces with Airi Wakamiya, a newbie clumsy detective, and Inspector Kazamatsuri returns to the Kunitachi Police Station from the Metropolitan Police Department to take on five difficult cases.

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