How many movies have Hisao Yokobori and Yoshihiro Kasahara collaborated on?

They have worked on 4 movies together! Their first movie together was The Piano Forest (2007) while their highest rated movie together was Lupin the Third: Goemon's Blood Spray (2017). They have not worked together since Lupin the Third: Fujiko's Lie (2019). They are most known for their drama films together.