How many movies have Masao Yagi and Reiko Ōhara collaborated on?

They have worked on 9 movies together! Their first movie together was Prison Walls of Abashiri 4 (1965) while their highest rated movie together was Three Pretty Devils (1970). They have not worked together since Kigeki Toruko-buro Osho-sen (1971). They are most known for their drama films together.