How many movies have Kazuko Shibata and Tensai Okamura collaborated on?

They have worked on 2 movies together! Their first movie together was Yap! Bun Bun (1987) while their highest rated movie together was Legend of the Galactic Heroes: My Conquest Is the Sea of Stars (1988). They have not worked together since Legend of the Galactic Heroes: My Conquest Is the Sea of Stars (1988).