How many movies have Akiko Yajima and Tamao Hayashi acted in together?

They have worked on 16 movies together! Their first movie together was Crayon Shin-chan: Action Mask vs. Leotard Devil (1993) while their highest rated movie together was Shin Chan: 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.