How many movies have Hitoshi Tamura and Yoshiaki Kayaba collaborated on?

They have worked on 3 movies together! Their first movie together was Natsume's Book of Friends: Ephemeral Bond (2018) while their highest rated movie together was Rascal Does Not Dream of a Dreaming Girl (2019). They have not worked together since Girls und Panzer das Finale: Part II (2019). They are most known for their animation films together.