How many movies have Ikue Otani and Isshin Chiba acted in together?

They have worked on 16 movies together! Their first movie together was Kindaichi Case Files Movie 1: The Opera House Murders (1996) while their highest rated movie together was Detective Conan: The Phantom of Baker Street (2002). They have not worked together since Detective Conan: Love Story at Police Headquarters ~Wedding Eve~ (2022). They are most known for their animation films together.