How many movies have Koike Shuuichirou and Sasada Aiichirou collaborated on?

They have worked on 5 movies together! Their first movie together was Elisabeth ~The Rondo of Love and Death~ (2003) and was their highest rated movie together. They have not worked together since The Poe Clan (Flower Troupe, 2018) (2018). They are most known for their romance films together.