How many movies have Kenichi Watanabe and Mami Koyama collaborated on?
They have worked on 1 movie together! Their first movie together was Detective Conan: The Raven Chaser (2009) and was their highest rated movie together. They have not worked together since Detective Conan: The Raven Chaser (2009).
Crew
Key Animation
Role
Vermouth (voice)