How many movies have Natsuo Kawafune and Yudo Yoshikawa collaborated on?

They have worked on 7 movies together! Their first movie together was Sixteen Years Old: Nymphets' Room (1977) while their highest rated movie together was Uptown Lady: Days of Eros (1980). They have not worked together since From the Back or From the Front (1980). They are most known for their drama films together.