How many movies have Kaori Mizuhashi and Natsuko Kuwatani acted in together?

They have worked on 5 movies together! Their first movie together was Kiddy Grade II: Maelstrom (2007) while their highest rated movie together was Magical Girl Lyrical Nanoha: The Movie 1st (2010). They have not worked together since Magical Girl Lyrical Nanoha: Reflection (2017). They are most known for their animation films together.