How many movies have Katsurō Sakai and Mami Sakura acted in together?

They have worked on 7 movies together! Their first movie together was Young sex: Rankô shori (1972) while their highest rated movie together was Semi-dokyumento: Zoku nyotai no shinpi (1975). They have not worked together since Tōkyō neon chitai: Josei jishin de go shidō itashimasu (1977).