How many movies have Aya Matsui and Sayuri Ichiishi collaborated on?

They have worked on 3 movies together! Their first movie together was Animal Crossing: The Movie (2006) while their highest rated movie together was Professor Layton and the Eternal Diva (2009). They have not worked together since Professor Layton and the Eternal Diva (2009). They are most known for their animation films together.