How many movies have Akiko Muto and Masae Otake collaborated on?

They have worked on 5 movies together! Their first movie together was The Tale of the Ginormous Whale That Fell in Love with a Little Submarine (2004) while their highest rated movie together was Kiku and the Wolf (2008). They have not worked together since The Story of the Blue-Eyed Girl (2009). They are most known for their animation films together.