How many movies have Kenji Kawai and Toru Okawa collaborated on?

They have worked on 7 movies together! Their first movie together was Towa no Quon 2: Dancing Orchid in Chaos (2011) while their highest rated movie together was Towa no Quon 3: The Complicity of Dreams (2011). They have not worked together since Hakuouki: Wild Dance of Kyoto (2013). They are most known for their animation films together.