How many movies have Miyuki Matsumoto and Shin-ichiro Miki collaborated on?

They have worked on 3 movies together! Their first movie together was Pokémon the Movie: Volcanion and the Mechanical Marvel (2016) while their highest rated movie together was Gintama: The Very Final (2021). They have not worked together since Gintama: The Very Final (2021). They are most known for their animation films together.