How many movies have Keiko Onodera and Nana Mizuki collaborated on?

They have worked on 3 movies together! Their first movie together was Zorori the Naughty Hero: Defend the Dinosaur Egg! (2013) and was their highest rated movie together. They have not worked together since Pretty Guardian Sailor Moon Cosmos the Movie Part 2 (2023). They are most known for their animation films together.