How many movies have Chie Sato and Satomi Korogi acted in together?

They have worked on 20 movies together! Their first movie together was Crayon Shin-chan: The Hidden Treasure of the Buri Buri Kingdom (1994) while their highest rated movie together was Crayon Shin-chan: Storm-invoking Passion! The Adult Empire Strikes Back (2001). They have not worked together since Crayon Shin-chan: Mononoke Ninja Chinpūden (2022). They are most known for their animation films together.