How many movies have Takashi Narikawa and Yasunari Usuda collaborated on?

They have worked on 4 movies together! Their first movie together was Road to Ninja: Naruto the Movie (2012) and was their highest rated movie together. They have not worked together since Code Geass: Akito the Exiled 4: Memories of Hatred (2015). They are most known for their animation films together.