How many movies have Koichi Sato and Setsuko Karasuma acted in together?

They have worked on 4 movies together! Their first movie together was Manon (1981) while their highest rated movie together was Mishima: A Life in Four Chapters (1985). They have not worked together since 64: Part 2 (2016).

Role
Kashiwagi (segment "The Temple of the Golden Pavilion")
Role
Mitsuko (segment "Kyoko's House")