How many movies have Emiko Shimura and Ryusei Nakao collaborated on?

They have worked on 6 movies together! Their first movie together was Go! Anpanman: Tears of the Mermaid Princess (2000) while their highest rated movie together was Go! Anpanman: Star-Spirited Dollie (2006). They have not worked together since Go! Anpanman: Fluffy Flurry and the Land of Clouds (2021). They are most known for their animation films together.