How many movies have Akiko Yajima and Satomi Korogi acted in together?

They have worked on 30 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: Burst Serving! Kung Fu Boys ~Ramen Rebellion~ (2018). They are most known for their animation films together.