How many movies have Haruo Kawashima and Nobumasa Fukushima collaborated on?

They have worked on 10 movies together! Their first movie together was Castle Orgies (1971) while their highest rated movie together was Tattooed Flower Vase (1976). They have not worked together since Climax! Okasareru hanayome (1980). They are most known for their drama films together.