How many movies have Junichi Sato and Sayaka Harada collaborated on?

They have worked on 2 movies together! Their first movie together was Tamayura: Graduation Photo Part 1 - Kizashi (2015) while their highest rated movie together was Tamayura: Graduation Photo Part 3 - Akogare (2015). They have not worked together since Tamayura: Graduation Photo Part 3 - Akogare (2015).