How many movies have Takuya Nishimichi and Tomokazu Seki collaborated on?

They have worked on 2 movies together! Their first movie together was Demon Slayer -Kimetsu no Yaiba- The Movie: Mugen Train (2020) and was their highest rated movie together. They have not worked together since Fate/Grand Order Final Singularity – Grand Temple of Time: Solomon (2021).