How many movies have Ai Negishi and Mei Okada acted in together?

They have worked on 3 movies together! Their first movie together was Merm4id from D4DJ "Summer Flower Love Dream" (2020) and was their highest rated movie together. They have not worked together since Lyrical Lily x Merm4id Godo Live Nyan-Nyan Shake! Merm4id ver. (2022). They are most known for their music films together.