How many movies have Katsurō Sakai and Kiyomi Yasuda acted in together?

They have worked on 6 movies together! Their first movie together was Niizuma no wananaki (1976) while their highest rated movie together was Maruhi yobai: Goke korogashi (1976). They have not worked together since Tōkyō neon chitai: Josei jishin de go shidō itashimasu (1977).