How many movies have Kagai Okado and Kōji Hirose collaborated on?

They have worked on 5 movies together! Their first movie together was Soldiers' Girls (1958) while their highest rated movie together was The Blood Sword of the 99th Virgin (1959). They have not worked together since 皇室と戦争とわが民族 (1960). They are most known for their drama films together.