How many movies have Ako Mayama and Nobuo Tobita acted in together?

They have worked on 5 movies together! Their first movie together was Chibi Maruko-chan (1990) while their highest rated movie together was Chibi Maruko-chan: My Favorite Song (1992). They have not worked together since Shimajirou the Movie: Great Adventure on Magic Island (2018). They are most known for their animation films together.