How many movies have Fumiko Yoshida and Ikue Otani collaborated on?

They have worked on 8 movies together! Their first movie together was Detective Conan: The Time Bombed Skyscraper (1997) and was their highest rated movie together. They have not worked together since Pokémon the Movie: Volcanion and the Mechanical Marvel (2016). They are most known for their animation films together.