How many movies have Kōji Yashiro and Nobuaki Shirai collaborated on?

They have worked on 8 movies together! Their first movie together was Inran'na kankei (1976) while their highest rated movie together was Nun Story: Frustration in Black (1980). They have not worked together since Shinnyû Shain: (Maruhi) OL Ôoku Monogatari (1980). They are most known for their drama films together.