How many movies have Aika Kawasaki and Hiroyuki Shimizu collaborated on?

They have worked on 4 movies together! Their first movie together was anohana: The Flower We Saw That Day - The Movie (2013) while their highest rated movie together was Rascal Does Not Dream of a Dreaming Girl (2019). They have not worked together since Her Blue Sky (2019). They are most known for their animation films together.