How many movies have Hiroyoshi Nishioka and Kunihiko Murai collaborated on?

They have worked on 4 movies together! Their first movie together was Zatoichi at Large (1972) while their highest rated movie together was New Hoodlum Soldier Story: Firing Line (1972). They have not worked together since Hanzo the Razor: Sword of Justice (1972). They are most known for their drama films together.