How many movies have Naoki Kaneko and Yasuhito Hironaka collaborated on?

They have worked on 7 movies together! Their first movie together was Apartment Wife: Adultery in broad daylight (1997) while their highest rated movie together was Perfect Blue: Yume Nara Samete (2002). They have not worked together since Diary of Beloved Wife: Devoted Wife (2006). They are most known for their drama films together.