How many movies have Kappei Yamaguchi and Tomohiro Kawahara collaborated on?

They have worked on 3 movies together! Their first movie together was Plastic Little: The Adventures of Captain Tita (1994) while their highest rated movie together was Detective Conan: The Phantom of Baker Street (2002). They have not worked together since Detective Conan: Crossroad in the Ancient Capital (2003). They are most known for their adventure films together.