How many movies have Kuninori Yamazaki and Makoto Naohira collaborated on?

They have worked on 6 movies together! Their first movie together was Chikan densha: Ecchi ga ippai (1988) while their highest rated movie together was Drifting Into Chaos (1989). They have not worked together since Drifting Into Chaos (1989). They are most known for their drama films together.