How many movies have Akihiro Okuzawa and Megumi Hayashibara collaborated on?

They have worked on 3 movies together! Their first movie together was Detective Conan: Episode One - The Great Detective Turned Small (2016) and was their highest rated movie together. They have not worked together since Case Closed: The Fist of Blue Sapphire (2019). They are most known for their mystery films together.