How many movies have Akira Nishimori and Yoichi Nangoo collaborated on?

They have worked on 3 movies together! Their first movie together was Maryuu Senki (1987) while their highest rated movie together was Hades Project: Zeorymer Separation (1988). They have not worked together since Hades Project: Zeorymer Extinction (1989). They are most known for their animation films together.