How many movies have Houko Kuwashima and Koichi Yamadera acted in together?

They have worked on 6 movies together! Their first movie together was Yona Yona Penguin (2009) while their highest rated movie together was Pretty Cure All Stars DX3: Deliver the Future! The Rainbow-Colored Flower That Connects the World (2011). They have not worked together since Space Battleship Yamato 2205: The New Voyage - Prior Chapter: Take Off (2021). They are most known for their animation films together.