How many movies have Shingo Tamagawa and Showtaro Morikubo collaborated on?

They have worked on 1 movie together! Their first movie together was Code Geass: Akito the Exiled 4: Memories of Hatred (2015) and was their highest rated movie together. They have not worked together since Code Geass: Akito the Exiled 4: Memories of Hatred (2015).