How many movies have Hiroki Hirakawa and Setsuko Tachibana collaborated on?

They have worked on 2 movies together! Their first movie together was Sex document: okashite naburu (1983) while their highest rated movie together was Matsumoto Ryûsuke no hai, honban desu (1983). They have not worked together since Matsumoto Ryûsuke no hai, honban desu (1983).