How many movies have Keita Hagio and Yoshio Chizaki collaborated on?

They have worked on 4 movies together! Their first movie together was High School Fleet Movie (2020) 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.