How many movies have Keiko Takano and Sachiko Nishi collaborated on?

They have worked on 6 movies together! Their first movie together was Bungo Stray Dogs: Dead Apple (2018) while their highest rated movie together was Josee, the Tiger and the Fish (2020). They have not worked together since Eureka: Eureka Seven Hi-Evolution (2021). They are most known for their animation films together.