How many movies have Akemi Yamakaji and Naoki Arakawa collaborated on?

They have worked on 3 movies together! Their first movie together was Library War: The Wings Of Revolution (2012) while their highest rated movie together was Ghost in the Shell: Arise - Border 1: Ghost Pain (2013). They have not worked together since Ghost in the Shell: Arise - Border 4: Ghost Stands Alone (2014). They are most known for their animation films together.