How many movies have Hatsumi Takahashi and Hong Beom-seok collaborated on?

They have worked on 2 movies together! Their first movie together was Pokémon the Movie: Volcanion and the Mechanical Marvel (2016) while their highest rated movie together was Yo-kai Watch Jam: Yo-kai Academy Y - Can a Cat Be a Hero? (2019). They have not worked together since Yo-kai Watch Jam: Yo-kai Academy Y - Can a Cat Be a Hero? (2019).