How many movies have Kazuo Yagyu and Rokuro Kumagai collaborated on?

They have worked on 3 movies together! Their first movie together was Extracurricular Activities: Almost Ripe (1978) while their highest rated movie together was Climax! Okasareru hanayome (1980). They have not worked together since Climax! Okasareru hanayome (1980). They are most known for their drama films together.