How many movies have Hiyori Denforword Akishino and Shunsuke Tada collaborated on?

They have worked on 7 movies together! Their first movie together was The Legend of the Galactic Heroes: Die Neue These Seiran 1 (2019) while their highest rated movie together was The Legend of the Galactic Heroes: Die Neue These Collision 1 (2022). They have not worked together since Legend of the Galactic Heroes: Die Neue These - Intrigue 1 (2022). They are most known for their animation films together.