How many movies have Ikkei Yamamoto and Ryotaro Akazawa acted in together?

They have worked on 4 movies together! Their first movie together was Ensemble Stars! On Stage ~Festival~ (2018) and was their highest rated movie together. They have not worked together since Musical "Moriarty the Patriot" Op.3 - The Phantom Of Whitechapel - (2021). They are most known for their history films together.