Ep 137The Old Blue Castle Investigation Case (Part 2)
Mar 1, 1999
4.6 Rating
Is Detective Conan Episode 137 Filler?
No — Episode 137 is Canon. This episode directly adapts content from the Detective Conan manga and contains story-critical events. We strongly recommend watching all canon episodes to follow the main plot without missing key developments.
Episode Overview
"The Old Blue Castle Investigation Case (Part 2)" is Episode 137 in the Detective Conan Main arc of Detective Conan, originally broadcast on March 1, 1999. As a canon episode, the story depicted here is taken directly from the Detective Conan manga. Missing Episode 137 would leave important story beats unresolved — this one is required watching.
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Episode 136: The Old Blue Castle Investigation Case (Part 1)
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Episode 138: The Final Screening Murder Case (Part 1)
Episode information is collated from multiple community sources and may contain inaccuracies.
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