Ling is one of three who joined the Imperial Army, the other two being Chien Po and Yao.
He and Yao shared dislike against Sora, Mulan, Donald and Goofy, but eventually changed his mind after they saved the country from Shan-Yu and his Heartless army.
During the credits, Ling is shown spying on Mulan and Li Shang along with Yao and Chien Po, but the three are discovered when they fall down, alerting the Captain and most likely earning them punishment.
