How many movies have Izumi Ozawa and Minami Usui collaborated on?

They have worked on 12 movies together! Their first movie together was The Garden of Sinners: A Study in Murder (Part 1) (2007) while their highest rated movie together was Rascal Does Not Dream of a Dreaming Girl (2019). They have not worked together since Detective Conan: The Scarlet Bullet (2021). They are most known for their animation films together.