How many movies have Kazuyo Aoki and Tsutomu Shibayama collaborated on?

They have worked on 3 movies together! Their first movie together was Makoto-chan (1980) and was their highest rated movie together. They have not worked together since Doraemon: Nobita in the Wan-Nyan Spacetime Odyssey (2004). They are most known for their animation films together.