Imperial Academy

The Imperial Academy is a Auradonian school. Located in Northern Wei, students are trained to be smart, strong and brave warriors in case villains might strike again.

Return to the Isle of the Lost
When Yen Sid asked Jay about the Tourney season, Jay stated they only lost one game to the Imperial Academy. Apparently, Jay thought, Li Shang had trained them well.

Inspiration
In Beijing, China, there was a school known as the Beijing Guozijian (Imperial Academy) where old Chinese dynasties were thought. It was thought the highest of colleges in China. Nowadays, it's a museum.

Trivia

 * In the opening of Mulan 2, Mulan teaches some children how to keep balance and how to fight. This might indicate Mulan teaches there as well.
 * Even though Li Shang (and possibly his wife Mulan) teach here, both their children (Li Shang Jr. and Lonnie) go to Auradon Prep.