Is Detective Conan episode 309 filler?
Canon No, episode 309 of Detective Conan is canon.
#309
Contact with the Black Organization: Negotiation Chapter
交渉編)
Aired 10 Feb 2003
Canon No, episode 309 of Detective Conan is canon.
#309
Contact with the Black Organization: Negotiation Chapter
交渉編)
Aired 10 Feb 2003