How many movies have Hidetoshi Kageyama and Yoko Oyagi acted in together?

They have worked on 7 movies together! Their first movie together was Tsuma San-nin: Hada Kurabe (1973) while their highest rated movie together was New Apartment Wife: Prostitution in Building #13 (1975). They have not worked together since Zoom In: Rape Apartments (1980). They are most known for their drama films together.