How many movies have Junko Isaka and Midori Nagaoka collaborated on?

They have worked on 9 movies together! Their first movie together was The Story of Fifteen Boys (1987) while their highest rated movie together was Tamagotchi: The Movie! The Happiest Story in the Universe!? (2008). They have not worked together since Pokémon the Movie: Hoopa and the Clash of Ages (2015). They are most known for their animation films together.