How many movies have Aika Kawasaki and Tomoyuki Ohshita collaborated on?

They have worked on 4 movies together! Their first movie together was Eden of the East Movie I: The King of Eden (2009) while their highest rated movie together was The Quintessential Quintuplets Movie (2022). They have not worked together since The Quintessential Quintuplets Movie (2022). They are most known for their animation films together.