How many movies have Tomokazu Seki and Tsutomu Kawahigashi collaborated on?

They have worked on 5 movies together! Their first movie together was Yo-kai Watch: The Movie (2014) while their highest rated movie together was Sword Art Online the Movie – Progressive – Aria of a Starless Night (2021). They have not worked together since Doraemon the Movie: Nobita's Earth Symphony (2024). They are most known for their animation films together.