How many movies have Kazutaka Yamanaka and Keiji Ota collaborated on?

They have worked on 4 movies together! Their first movie together was My Hero Academia: World Heroes' Mission (2021) while their highest rated movie together was Teasing Master Takagi-san: The Movie (2022). They have not worked together since HAIKYU!! The Dumpster Battle (2024). They are most known for their animation films together.