How many movies have Izumi Ozawa and Yuki Kajiura collaborated on?

They have worked on 7 movies together! Their first movie together was The Garden of Sinners: A Study in Murder (Part 1) (2007) while their highest rated movie together was The Garden of Sinners: Paradox Spiral (2008). They have not worked together since The Garden of Sinners: Future Gospel (2013). They are most known for their animation films together.