How many movies have Emi Kouno and Ken Naito collaborated on?

They have worked on 2 movies together! Their first movie together was Rurouni Kenshin: New Kyoto Arc: Cage of Flames (2011) while their highest rated movie together was Puella Magi Madoka Magica the Movie Part III: Rebellion (2013). They have not worked together since Puella Magi Madoka Magica the Movie Part III: Rebellion (2013).