How many movies have Ikue Otani and Masakazu Kubo collaborated on?

They have worked on 20 movies together! Their first movie together was Pokémon the Movie 2000 (1999) while their highest rated movie together was Detective Conan: Episode One - The Great Detective Turned Small (2017). They have not worked together since Detective Conan: The Bride of Halloween (2022). They are most known for their animation films together.