How many movies have Maaya Sakamoto and Yuuichirou Umehara acted in together?

They have worked on 4 movies together! Their first movie together was Words Bubble Up Like Soda Pop (2021) 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 The Legend of the Galactic Heroes: Die Neue These Collision 3 (2022). They are most known for their animation films together.