How many movies have Kouichi Souma and Showtaro Morikubo acted in together?

They have worked on 2 movies together! Their first movie together was Code Geass: Akito the Exiled 3: The Brightness Falls (2015) and was their highest rated movie together. They have not worked together since Code Geass: Akito the Exiled 4: Memories of Hatred (2015).