How many movies have Mie Kasai and Mizuka Ueda collaborated on?

They have worked on 4 movies together! Their first movie together was Napping Princess (2017) while their highest rated movie together was Maquia: When the Promised Flower Blooms (2018). They have not worked together since Fate/stay night: Heaven's Feel III. Spring Song (2020). They are most known for their drama films together.