How many movies have Keiju Nagasawa and Sadaaki Haginiwa collaborated on?

They have worked on 4 movies together! Their first movie together was The King of Minami: Ginjiro Manda (1992) while their highest rated movie together was The King of Minami: Planned Bankruptcy (1992). They have not worked together since The King of Minami: Theatrical Movie 1 (1993).