How many movies have Mantaro Koichi and Yukiyoshi Ozawa acted in together?

They have worked on 4 movies together! Their first movie together was The Hidden Blade (2004) while their highest rated movie together was Rurouni Kenshin Part III: The Legend Ends (2014). They have not worked together since Rurouni Kenshin Part III: The Legend Ends (2014). They are most known for their drama films together.