How many movies have Daisuke Saito and Yasumasa Koyama collaborated on?

They have worked on 4 movies together! Their first movie together was Girls und Panzer der Film (2015) while their highest rated movie together was KONOSUBA – God's blessing on this wonderful world! Legend of Crimson (2019). They have not worked together since KONOSUBA – God's blessing on this wonderful world! Legend of Crimson (2019). They are most known for their animation films together.