How many movies have Naoko Matsui and Naoko Soeda collaborated on?

They have worked on 3 movies together! Their first movie together was Detective Conan: Magician of the Silver Sky (2004) while their highest rated movie together was Detective Conan: The Private Eyes' Requiem (2006). They have not worked together since Detective Conan: Private Eye in the Distant Sea (2013). They are most known for their animation films together.