How many movies have Ikue Otani and Saki Hasegawa collaborated on?

They have worked on 6 movies together! Their first movie together was Detective Conan: Dimensional Sniper (2014) 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: The Bride of Halloween (2022). They are most known for their mystery films together.