How many movies have Izumi Seguchi and Miyuki Sawashiro collaborated on?

They have worked on 4 movies together! Their first movie together was Library War: The Wings Of Revolution (2012) 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.