How many movies have Hotaru Hazuki and Yoshitaka Kamada collaborated on?

They have worked on 2 movies together! Their first movie together was 赤い犯行 夢の後始末 (1997) while their highest rated movie together was The Lustful Sister-in-Law 2: Erotic Games (1999). They have not worked together since The Lustful Sister-in-Law 2: Erotic Games (1999).