How many movies have Ikue Otani and Mitomu Asai collaborated on?

They have worked on 3 movies together! Their first movie together was Lupin the Third vs. Detective Conan: The Movie (2013) while their highest rated movie together was Pokémon the Movie: I Choose You! (2017). They have not worked together since Pokémon the Movie: I Choose You! (2017). They are most known for their animation films together.