How many movies have Keisuke Yukioka and Shizo Kawahara collaborated on?

They have worked on 3 movies together! Their first movie together was Cat Girls Gamblers: Abandoned Fangs of Triumph (1966) while their highest rated movie together was The Superhuman Stud (1972). They have not worked together since The Vanity of the Shogun's Mistress (1974). They are most known for their crime films together.