How many movies have Eriko Nakamura and Naomi Wakabayashi acted in together?

They have worked on 13 movies together! Their first movie together was THE iDOLM@STER Master Movie (2006) while their highest rated movie together was THE IDOLM@STER M@STERS OF IDOL WORLD!! 2015 (2015). They have not worked together since THE IDOLM@STER PRODUCER MEETING 2018 What is TOP!!!!!!!!!!!!!? (2019). They are most known for their music films together.