How many movies have Atsuko Ito and Hiroyuki Horiuchi collaborated on?

They have worked on 9 movies together! Their first movie together was Detective Conan: The Lost Ship in the Sky (2010) while their highest rated movie together was Detective Conan: Episode One - The Great Detective Turned Small (2017). They have not worked together since Detective Conan: Black Iron Submarine (2023). They are most known for their animation films together.