How many movies have Masako Nozawa and Shigeru Mizuki collaborated on?

They have worked on 3 movies together! Their first movie together was Spooky Kitaro (1968) while their highest rated movie together was The Birth of Kitaro: The Mystery of GeGeGe (2023). They have not worked together since The Birth of Kitaro: The Mystery of GeGeGe (2023). They are most known for their horror films together.