How many movies have Hayato Hashiguchi and Satoshi Sakai collaborated on?

They have worked on 3 movies together! Their first movie together was PERSONA3 THE MOVIE #1 Spring of Birth (2013) while their highest rated movie together was Made in Abyss: Dawn of the Deep Soul (2020). They have not worked together since Fate/Grand Order Final Singularity – Grand Temple of Time: Solomon (2021). They are most known for their fantasy films together.