How many movies have Kaori Asô and Shōgorō Nishimura collaborated on?

They have worked on 4 movies together! Their first movie together was Flower and Snake 2: Sketch of Hell (1985) while their highest rated movie together was Akai kinryōku: haado koa no yoru (1986). They have not worked together since Shirobara gakuin: Waisetsuna hōkago (1986). They are most known for their drama films together.