How many movies have Fumihiko Tachiki and Hanako Mitsubachi collaborated on?

They have worked on 3 movies together! Their first movie together was Code Geass: Akito the Exiled 2: The Wyvern Divided (2013) while their highest rated movie together was Gintama: The Very Final (2021). They have not worked together since Gintama: The Very Final (2021). They are most known for their action films together.