How many movies have Keita Hagio and Yoshitsugu Matsuoka collaborated on?

They have worked on 4 movies together! Their first movie together was Saekano the Movie: Finale (2019) while their highest rated movie together was The Quintessential Quintuplets Movie (2022). They have not worked together since Sword Art Online the Movie – Progressive – Scherzo of Deep Night (2022). They are most known for their animation films together.