How many movies have Rio Niisato and Yuki Kajiura collaborated on?

They have worked on 3 movies together! Their first movie together was The Garden of Sinners: Future Gospel (2013) while their highest rated movie together was Fate/stay night: Heaven's Feel I. Presage Flower (2017). They have not worked together since Fate/stay night: Heaven's Feel II. Lost Butterfly (2019). They are most known for their animation films together.