How many movies have Otohiko Fujita and Yuki Kaji collaborated on?

They have worked on 4 movies together! Their first movie together was Blue Exorcist: The Movie (2012) while their highest rated movie together was Black Butler: Book of the Atlantic (2017). They have not worked together since Case Closed: The Fist of Blue Sapphire (2019). They are most known for their action films together.