How many movies have Yoshikazu Iwanami and Yuka Iguchi collaborated on?

They have worked on 7 movies together! Their first movie together was The Garden of Sinners: The Hollow Shrine (2008) while their highest rated movie together was The Garden of Sinners: Future Gospel (2013). They have not worked together since Girls und Panzer das Finale: Part III (2021). They are most known for their animation films together.