How many movies have Kenji Yamauchi and Koichi Yamadera acted in together?

They have worked on 1 movie together! Their first movie together was Zorori the Naughty Hero: La La La♪ A Star is Born (2022) and was their highest rated movie together. They have not worked together since Zorori the Naughty Hero: La La La♪ A Star is Born (2022).