How many movies have Katsumasa Naoi and Yoshifumi Kamoda collaborated on?

They have worked on 9 movies together! Their first movie together was The World of Geisha (1973) while their highest rated movie together was Wet Lust: 21 Strippers (1974). They have not worked together since Painful Bliss: Final Twist (1977). They are most known for their drama films together.