Setsuna Toriyama (Tao Tsuchiya), a new generation Japanese girl who lives a luxurious life and is lazy and playful, was admitted to the Yufei University of Technology after a year of repeating. Just after entering school, Setsuna met the handsome senior Kei Takahashi (Mahiro Takasugi), and then joined the human flight interest group (Team Birdman Trial) at the invitation of the other party. This strange group has nearly 100 members, and everyone then gathered at the shore of Lake Biwa to train for the upcoming summer conference. Among this group of weirdos, Taishi Sakaba (Shotaro Mamiya), known as the "mad dog", is particularly motivated. In a test flight, Senior Takahashi was unfortunately injured, and the body they painstakingly built was also severely damaged. With the summer conference approaching, their road to winning the championship has become bumpy and rugged. In the process, the lazy Setsuna slowly found the direction to move forward... This film is adapted from the novel of the same name by the writer Nakamura Kou.