How many movies have Shingo Yamashiro and Shun Ueda acted in together?

They have worked on 4 movies together! Their first movie together was Hooligans on Buggies (1970) while their highest rated movie together was King of Pornography (1971). They have not worked together since Delinquent Boss: Devour to the Bone (1972). They are most known for their drama films together.