How many movies have Joji Tanaka and Kazutaka Okazaki collaborated on?

They have worked on 12 movies together! Their first movie together was The Actual Erogenous Zone Secretary (1992) while their highest rated movie together was Gibo no onanii: Hatsujô roshutsu (1997). They have not worked together since In Search of a Lost Writer: Wandering in the World of the Seventh Sense (1999). They are most known for their drama films together.