How many movies have Megumi Hayashibara and Rei Masunaga collaborated on?

They have worked on 4 movies together! Their first movie together was Detective Conan: Crossroad in the Ancient Capital (2003) while their highest rated movie together was Zorori the Naughty Hero: Super Adventure! (2012). They have not worked together since Detective Conan: The Scarlet Bullet (2021). They are most known for their animation films together.