How many movies have Kappei Yamaguchi and Reiko Kiuchi acted in together?

They have worked on 3 movies together! Their first movie together was Inuyasha the Movie 4: Fire on the Mystic Island (2004) while their highest rated movie together was One Piece: Stampede (2019). They have not worked together since One Piece: Stampede (2019). They are most known for their adventure films together.