How many movies have Haruko Nagaya and Toshihiko Masuda collaborated on?

They have worked on 1 movie together! Their first movie together was Crayon Shin-chan the Movie: The Tornado Legend of Ninja Mononoke (2022) and was their highest rated movie together. They have not worked together since Crayon Shin-chan the Movie: The Tornado Legend of Ninja Mononoke (2022).