How many movies have Emi Honda and Kyoko Kotani collaborated on?

They have worked on 5 movies together! Their first movie together was Road to Ninja: Naruto the Movie (2012) while their highest rated movie together was Saint☆Young Men (2013). They have not worked together since Donten: Laughing Under the Clouds - Gaiden: Chapter 2 - The Tragedy of Fuuma Ninja Tribe (2018). They are most known for their animation films together.