How many movies have Emi Honda and Mamiko Nakanishi collaborated on?

They have worked on 3 movies together! Their first movie together was Road to Ninja: Naruto the Movie (2012) while their highest rated movie together was New Initial D the Movie - Legend 3: Dream (2016). 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 action films together.