How many movies have Iku Nishimura and Koji Tanaka 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 Ghost in the Shell: Arise - Border 2: Ghost Whispers (2013). They have not worked together since Napping Princess (2017). They are most known for their science fiction films together.