How many movies have Shunryo Yamamura and Yasumasa Koyama collaborated on?

They have worked on 3 movies together! Their first movie together was Rascal Does Not Dream of a Dreaming Girl (2019) and was their highest rated movie together. They have not worked together since Sword Art Online the Movie – Progressive – Aria of a Starless Night (2021). They are most known for their fantasy films together.