How many movies have Nobutaka Masutomi and Reiko Natsu acted in together?

They have worked on 2 movies together! Their first movie together was Nikutai hoken: beddo de sain (1981) while their highest rated movie together was Koichiro Uno's Wet and Riding (1982). They have not worked together since Koichiro Uno's Wet and Riding (1982).