How many movies have Mai Ito and Masaru Yanaka collaborated on?

They have worked on 2 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 Demon Slayer -Kimetsu no Yaiba- The Movie: Mugen Train (2020).