How many movies have Kumiko Nakashiki and Satomi Nishio collaborated on?

They have worked on 3 movies together! Their first movie together was Fate/stay night: Heaven's Feel III. Spring Song (2020) while their highest rated movie together was Demon Slayer -Kimetsu no Yaiba- The Movie: Mugen Train (2020). They have not worked together since Fate/kaleid liner Prisma☆Illya: Licht Nameless Girl (2021). They are most known for their fantasy films together.