How many movies have Shinsaku Kozuma and Yusaku Yara collaborated on?

They have worked on 3 movies together! Their first movie together was Birth: A War of Two Worlds (1984) while their highest rated movie together was GoShogun: The Time Étranger (1985). They have not worked together since M.D. Geist (1986). They are most known for their animation films together.