How many movies have Shigeru Okuhara and Shigeru Yamakawa collaborated on?

They have worked on 2 movies together! Their first movie together was Woman in a Box: Virgin Sacrifice (1985) while their highest rated movie together was Flower and Snake 4: White Uniform Rope Slave (1986). They have not worked together since Flower and Snake 4: White Uniform Rope Slave (1986).