How many movies have Kinji Nakamura and Rena Ichinose acted in together?

They have worked on 7 movies together! Their first movie together was Terrifying Girls' High School: Women's Violent Classroom (1972) while their highest rated movie together was Terrifying Girls' High School: Delinquent Convulsion Group (1973). They have not worked together since Girl Boss: Diamond Showdown (1974). They are most known for their crime films together.