How many movies have Kazuyoshi Okuyama and Kôhei Tsuka collaborated on?

They have worked on 3 movies together! Their first movie together was This Story of Love (1987) while their highest rated movie together was A Naive History of the Bakumatsu Era (1991). They have not worked together since Sosuke Loses His Lover (1992). They are most known for their drama films together.