How many movies have Junko Miyashita and Takehiro Nakajima collaborated on?

They have worked on 5 movies together! Their first movie together was Secret of Concubine Palace Addendum: Convent's Gate of Lust (1973) while their highest rated movie together was Erotic Journey: Love Affair in Hong Kong (1973). They have not worked together since The World of Geisha 2 – The Precocious Lad (1974).