How many movies have Seiya Inagaki and Yu (Vague) collaborated on?

They have worked on 5 movies together! Their first movie together was MANKAI STAGE A3! ~AUTUMN & WINTER 2019~ (2019) while their highest rated movie together was MANKAI STAGE A3! ~AUTUMN 2020~ (2020). They have not worked together since MANKAI STAGE『A3!』Troupe LIVE ~AUTUMN 2021~ (2022).