How many movies have Keiji Ota and Minami Takayama collaborated on?

They have worked on 9 movies together! Their first movie together was Lupin the Third vs. Detective Conan: The Movie (2013) while their highest rated movie together was Detective Conan: Dimensional Sniper (2014). They have not worked together since Detective Conan: The Bride of Halloween (2022). They are most known for their animation films together.