How many movies have Kouichirou Natsume and Mieko Ogata collaborated on?

They have worked on 3 movies together! Their first movie together was Naruto Shippuden the Movie: The Lost Tower (2010) while their highest rated movie together was anohana: The Flower We Saw That Day - The Movie (2013). They have not worked together since anohana: The Flower We Saw That Day - The Movie (2013). They are most known for their animation films together.