How many movies have Hiroshi Nawa and Reiko Ike acted in together?

They have worked on 12 movies together! Their first movie together was Hot Springs Mimizu Geisha (1971) while their highest rated movie together was Terrifying Girls' High School: Delinquent Convulsion Group (1973). They have not worked together since New Battles Without Honor and Humanity 1 (1974). They are most known for their action films together.