How many movies have Renji Ishibashi and Shigeru Kōyama acted in together?

They have worked on 11 movies together! Their first movie together was Sweet Revenge (1977) while their highest rated movie together was Onihei's Detective Records (1995). They have not worked together since The Man in White Part 2: Requiem for the Lion (2003). They are most known for their drama films together.