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The twentieth season of the "Case Closed" anime was directed by Kenji Kodama and Yasuichiro Yamamoto and produced by TMS Entertainment and Yomiuri Telecasting Corporation. The series is based on Gosho Aoyama's "Case Closed" manga series. In Japan, the series is titled but was changed due to legal issues with the title "Detective Conan". The series focuses on the adventures of teenage detective Shinichi Kudo who was turned into a child by a poison called APTX 4869, but continues working as a detective under the alias Conan Edogawa.