Is Detective Conan episode 447 filler?
Canon No, episode 447 of Detective Conan is canon.
#447
The Sealed Western-Style Window (Part 2)
後編)
Aired 31 Jul 2006
Canon No, episode 447 of Detective Conan is canon.
#447
The Sealed Western-Style Window (Part 2)
後編)
Aired 31 Jul 2006