How many movies have Masaru Mori and Mitsuyoshi Hikawa collaborated on?

They have worked on 5 movies together! Their first movie together was Secret of the College Girls: Part-Time Sex Pros (1974) while their highest rated movie together was A Woman Called Sada Abe (1975). They have not worked together since Toruko maruhi saizensen: Mitsugi 96 te (1975).