How many movies have Reiko Oshida and Tsunehiko Watase acted in together?

They have worked on 4 movies together! Their first movie together was Wolves of the City, Take Your Chance (1970) while their highest rated movie together was Delinquent Girl Boss: Worthless to Confess (1971). They have not worked together since Delinquent Girl Boss: Worthless to Confess (1971). They are most known for their crime films together.