How many movies have Ai Kayano and Shinpei Ōsaku collaborated on?

They have worked on 8 movies together! Their first movie together was Code Geass: Akito the Exiled 1: The Wyvern Arrives (2012) while their highest rated movie together was Mobile Suit Gundam: The Origin III - Dawn of Rebellion (2016). They have not worked together since Mobile Suit Gundam: The Origin VI – Rise of the Red Comet (2018). They are most known for their animation films together.