How many movies have Akiko Yajima and Rokuro Naya acted in together?

They have worked on 11 movies together! Their first movie together was Crayon Shin-chan: Action Mask vs. Leotard Devil (1993) 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: Intense Battle! Robo Dad Strikes Back (2014). They are most known for their animation films together.