Is Detective Conan episode 751 filler?
Canon No, episode 751 of Detective Conan is canon.
#751
The Beckoning Calico Cat Case (Part 1)
招き三毛猫の事件（前編）
Aired 20 Sept 2014
Canon No, episode 751 of Detective Conan is canon.
#751
The Beckoning Calico Cat Case (Part 1)
招き三毛猫の事件（前編）
Aired 20 Sept 2014