The legendary master of Hakkyokuseiken, Tung Fu Rue was the former master of both the noble Jeff Bogard and the power hungry Geese Howard. Although he had trained both men, he wanted Jeff to be his only successor since he displayed proper decorum for a honorable fighter. Geese caught wind of this and murdered Jeff out of jealousy. Tung was saddened by the loss and dropped the idea of adopting a successor. Tung had entered the 1992 edition of The King of Fighters tournament held by Geese, but was eventually defeated.
In his ending for Fatal Fury Special, he seems to have overexerted himself and is hospitalized. He decides to live the rest of his days in retirement and he occasionally enters a competition to keep in shape. Though he taught Terry for a time, Tung made it a policy to refuse any other disciples. He seems to break this in Real Bout by apparently making the Jin brothers his apprentices.