How many movies have Hisayo Usui and Minami Usui collaborated on?

They have worked on 6 movies together! Their first movie together was The Garden of Sinners: Paradox Spiral (2008) while their highest rated movie together was Rascal Does Not Dream of a Dreaming Girl (2019). They have not worked together since Fate/Grand Order Final Singularity – Grand Temple of Time: Solomon (2021). They are most known for their animation films together.