How many movies have Kosuke Iwanaga and Yuki Kaji collaborated on?

They have worked on 3 movies together! Their first movie together was I've Always Liked You (2016) while their highest rated movie together was The Moment You Fall in Love (2016). They have not worked together since Case Closed: The Fist of Blue Sapphire (2019). They are most known for their animation films together.