Is Detective Conan episode 504 filler?
Canon No, episode 504 of Detective Conan is canon.
#504
Clash of Red and Black (Killed in the Line of Duty)
赤と黒のクラッシュ殉職
Aired 19 May 2008
Canon No, episode 504 of Detective Conan is canon.
#504
Clash of Red and Black (Killed in the Line of Duty)
赤と黒のクラッシュ殉職
Aired 19 May 2008