How many movies have Eiichi Kusumoto and Toru Kurashima collaborated on?

They have worked on 7 movies together! Their first movie together was Wrath of Daimajin (1966) while their highest rated movie together was Lone Wolf and Cub: Sword of Vengeance (1972). They have not worked together since Lone Wolf and Cub: White Heaven in Hell (1974). They are most known for their action films together.