The story of Mr. Osomatsu the Movie will focus on the Matsuno brothers attending their high school class reunion and anxiously trying to prove that they haven’t turned into useless adults.
In Mr. Osomatsu the Movie, Mr. Osomatsu director Yoichi Fujita returns to direct the film, Shuu Matsubara provides the script, Naoyuki Asano provides character designs (based on the original characters created by Fujio Akatsuka), and the animation production is handled by Pierrot.