How many movies have Hiroko Kitazawa and Naomi Oka acted in together?

They have worked on 2 movies together! Their first movie together was (Maruhi) Shôsha Jôhô: Onna Kaishime Urioshimi (1973) and was their highest rated movie together. They have not worked together since Onna Chosain Sex Report: Fujo Bôkô (1973).