How many movies have Kōjirō Kusanagi and Seizô Sengen collaborated on?

They have worked on 11 movies together! Their first movie together was Dead Angle (1979) while their highest rated movie together was The Tragedy of “W” (1984). They have not worked together since Heisei Zankeiden: Gaido is Killed! (1997). They are most known for their drama films together.