Based on a series of light novels written by Tanaka Yoshiki. The story revolves around Ryōko Yakushiji, a brilliant 27-year-old elite investigator with the Tokyo Metropolitan Police. Together with her subordinate Junichirō Izumida, the two often investigate bizzare and supernatural cases. In addition with the paranormal, Ryōko also has a longstanding rivalry with Yukiko Muromachi, another talented police investigator.

Alternative title:

• Le recueil des faits improbables de Ryoko Yakushiji (French)
• Yakushiji Ryōko no Kaiki Jikenbo (Japanese)

Ryoko's Case File (TV):

• 1. FILE01 Ginza Crime Tower (1st part)
• 2. FILE01-B Ginza Crime Tower (2nd part)
• 3. FILE03 The Sakuradamon Incident
• 4. FILE04 Musashino Twilight
• 5. FILE05 The Bug That Crawls the Omotesando
• 6. FILE06 Maid in Kasumigaseki
• 7. FILE07 Okinawa, Gods' Island
• 8. FILE08 Tamagawa Suicide
• 9. FILE09 Queen of Shiba
• 10. FILE09-B Trap in Azabu
• 11. FILE09-C Takanawa Princess
• 12. FILE09-D Tokyo Dead or Love (1st Part)
• 13. FILE09-E Tokyo Dead or Love (2nd Part)