How many movies have Makoto Shinkawa and Mari Yoshikawa collaborated on?

They have worked on 2 movies together! Their first movie together was Hot Spring Resort: Geishas vs. Ozashiki Strippers (1975) while their highest rated movie together was Oryu's Passion: Bondage Skin (1975). They have not worked together since Oryu's Passion: Bondage Skin (1975).