How many movies have Hikaru Osawa and Reo Kansyuji acted in together?

They have worked on 5 movies together! Their first movie together was Kamen Rider × Kamen Rider Ghost & Drive: Super Movie Wars Genesis (2015) while their highest rated movie together was Kamen Rider Heisei Generations: Dr. Pac-Man vs. Ex-Aid & Ghost with Legend Riders (2016). They have not worked together since Kamen Rider Ghost RE:BIRTH - Kamen Rider Specter (2017). They are most known for their adventure films together.