How many movies have Rie Murakawa and Yoko Hikasa acted in together?

They have worked on 4 movies together! Their first movie together was Little Witch Academia: The Enchanted Parade (2015) while their highest rated movie together was Is It Wrong to Try to Pick Up Girls in a Dungeon?: Arrow of the Orion (2019). They have not worked together since Trinity Seven: Heaven's Library & Crimson Lord (2019). They are most known for their comedy films together.