How many movies have Hiroshi Seko and Tadashi Hiramatsu collaborated on?

They have worked on 2 movies together! Their first movie together was Twittering Birds Never Fly: The Clouds Gather (2020) while their highest rated movie together was Jujutsu Kaisen 0 (2021). They have not worked together since Jujutsu Kaisen 0 (2021).