How many movies have Miho Takechi and Seiichi Akitake collaborated on?

They have worked on 3 movies together! Their first movie together was Sound! Euphonium the Movie – Our Promise: A Brand New Day (2019) while their highest rated movie together was Violet Evergarden: The Movie (2020). They have not worked together since Violet Evergarden: The Movie (2020). They are most known for their drama films together.