How many movies have Kaito Senkoji and Yuki Kajiura collaborated on?

They have worked on 2 movies together! Their first movie together was Fate/stay night: Heaven's Feel II. Lost Butterfly (2019) while their highest rated movie together was Fate/stay night: Heaven's Feel III. Spring Song (2020). They have not worked together since Fate/stay night: Heaven's Feel III. Spring Song (2020).