How many movies have Eriko Hara and Koichi Yamadera acted in together?

They have worked on 6 movies together! Their first movie together was Kimagure Orange Road: I Want to Return to That Day (1988) while their highest rated movie together was Go! Anpanman: The Pyramid of the Rainbow (1997). They have not worked together since Go! Anpanman: Rescue! Kokorin and the Star of Miracles (2011). They are most known for their animation films together.