How many movies have Hideyuki Umezu and Michiko Neya acted in together?

They have worked on 6 movies together! Their first movie together was Rail of the Star - A True Story of Children and War (1993) while their highest rated movie together was Hell Teacher Nube (1996). They have not worked together since Mobile Suit Gundam 00: A Wakening of the Trailblazer (2010). They are most known for their animation films together.