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The first season of the "Case Closed" anime was directed by Kenji Kodama. It was produced by TMS Entertainment in cooperation with Yomiuri Telecasting Corporation. The series is based on Gosho Aoyama's "Case Closed" manga series. In Japan, the manga series is titled but "Case Closed" was adopted for the anime version to avoid legal issues. The series' plot is based on the adventures of a teenage detective Jimmy Kudo, reverted to childhood through a poisoning.