How many movies have Eiji Yoshikawa and Satomi Oka collaborated on?

They have worked on 8 movies together! Their first movie together was Echo in the Mountains (1959) while their highest rated movie together was Miyamoto Musashi: Showdown at Hannyazaka Heights (1962). They have not worked together since Miyamoto Musashi V: Musashi vs Kojiro (1965). They are most known for their drama films together.