How many movies have Akiko Hyûga and Nobuaki Shirai collaborated on?

They have worked on 4 movies together! Their first movie together was Shiroi fukurami (1979) while their highest rated movie together was Ryōjoku: Komasu (1979). They have not worked together since Shinnyû Shain: (Maruhi) OL Ôoku Monogatari (1980).