How many movies have Akiko Seki and Kyoko Kotani collaborated on?

They have worked on 6 movies together! Their first movie together was Mobile Suit Gundam 00 The Movie: -A Wakening of the Trailblazer- (2010) while their highest rated movie together was My Hero Academia: Heroes Rising (2019). They have not worked together since My Hero Academia: You're Next (2024). They are most known for their animation films together.