How many movies have Satomi Sato and Yumi Uchiyama acted in together?

They have worked on 4 movies together! Their first movie together was Arpeggio of Blue Steel -Ars Nova DC- (2015) while their highest rated movie together was Arpeggio of Blue Steel -Ars Nova Cadenza- (2015). They have not worked together since The Irregular at Magic High School: The Girl Who Summons the Stars (2017). They are most known for their animation films together.