How many movies have Chizuko Kusakabe and Mayumi Nakamura collaborated on?

They have worked on 4 movies together! Their first movie together was Inazuma Eleven GO The Movie: The Ultimate Bonds Gryphon (2011) 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.