How many movies have Masaharu Sato and Seiko Nakano acted in together?

They have worked on 4 movies together! Their first movie together was The Tomb of Dracula (1980) while their highest rated movie together was Dr. Slump and Arale-chan: Hoyoyo! The Great Race Around The World (1983). They have not worked together since Dr. Slump and Arale-chan: Hoyoyo! The Great Race Around The World (1983). They are most known for their animation films together.