How many movies have Koichi Kawakami and Yukio Kubota collaborated on?

They have worked on 10 movies together! Their first movie together was Third Base (1978) while their highest rated movie together was The Blossoming of Etsuko Kamiya (2006). They have not worked together since The Blossoming of Etsuko Kamiya (2006). They are most known for their drama films together.