Is Detective Conan episode 307 filler?
Canon No, episode 307 of Detective Conan is canon.
#307
On the Trail of a Silent Witness (Part 1)
前編)
Aired 27 Jan 2003
Canon No, episode 307 of Detective Conan is canon.
#307
On the Trail of a Silent Witness (Part 1)
前編)
Aired 27 Jan 2003