How many movies have Eiji Akaso and Yukiaki Kiyama acted in together?

They have worked on 4 movies together! Their first movie together was Kamen Rider Heisei Generations FINAL: Build & Ex-Aid with Legend Riders (2017) while their highest rated movie together was Kamen Rider Build NEW WORLD: Kamen Rider Grease (2019). They have not worked together since Kamen Rider Build NEW WORLD: Kamen Rider Grease (2019). They are most known for their adventure films together.