Yakushiji Ryōko no Kaiki Jikenbo is a Japanese anime series directed by Tarō Iwasaki and animated by Doga Kobo. News of a TV adaptation for the novel series by Yoshiki Tanaka was announced in 2007.

Ryōko Yakushiji, a graduate of Tokyo University's Law Faculty, is currently among the youngest Superintendent in the Tokyo Metropolitan Police Department. With the assistance of her subordinate Junichirō Izumida, Ryōko works with her colleagues including her rival and fellow Superintendent Yukiko Muromachi, alongside JACES security forces personnel and her personal maids Lucienne and Marianne to investigate and resolve seemingly paranormal, supernatural or bizarre events before they go out of hand. The young Superintendent later becomes the target of a conspiracy, hatched from the shadows by an influential socialite named Ruriko Isurugi and supported by extremist factions in the Japan Private Police, Shiba and the JGSDF, aimed at creating a true Japanese military.

Yakushiji Ryōko no Kaiki Jikenbo originally aired on TVK from July 6 to September 28, 2008, for 13 episodes. The series later aired on BS11 Digital, Chiba TV, KBS Kyoto, Sun TV, Tokyo MX, TV Aichi, and Television Saitama. Titles of the opening and ending themes are rendered in French. The opening theme Thème Principal and ending themes À demain sur la lune (#1,3), Ryoko 2 (#2,6), Songe d'une nuit d'été (#4,7,9,10,12), La Vie en rose (#5), Le combat (#8,11) and Theme principal La chanson d'atsuko (#13) are all sung by KATSU.

DVDs of the series were released in Japan on September 26, 2008, October 22, 2008, December 25, 2008, and January 21, 2009. Each volume contains three episodes, except for the third volume which has four episodes.

The series began streaming in North America on RetroCrush as an exclusive title on November 5, 2021, under the name Ryoko's Case File.

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External links Starchild's Official Site Tokyo MX's Official Site