How many movies have Miho Karasawa and Takahiro Sakurai collaborated on?

They have worked on 2 movies together! Their first movie together was That Time I Got Reincarnated as a Slime the Movie: Scarlet Bond (2022) while their highest rated movie together was Sound! Euphonium: Ensemble Contest (2023). They have not worked together since Sound! Euphonium: Ensemble Contest (2023).