How many movies have Kazuki Higashiji and Masahiro Murakami collaborated on?

They have worked on 3 movies together! Their first movie together was Sakura Wars: The Movie (2001) while their highest rated movie together was Maquia: When the Promised Flower Blooms (2018). They have not worked together since Maquia: When the Promised Flower Blooms (2018). They are most known for their animation films together.