Terry and his younger brother Andy were orphans who raised themselves on the streets of South Town. They were soon adopted by Jeff Bogard, a master martial artist. A few years after being adopted by Jeff, both Terry and Andy witnessed the brutal murder of their adoptive father at the hands of Geese Howard: a ruthless businessman and expert martial artist who rules South Town's criminal underworld as a merciless crime boss. Geese, who was once Jeff's rival, had murdered Jeff when the latter had tried to expose Geese's criminal activities to the public. Knowing that they weren't strong enough and needed more training to confront Geese, the brothers made an oath to spend a decade to fine tune their martial arts before trying to avenge their adoptive father. Terry chose to wander in his home country, combining his self-taught street fighting techniques with the Hakkyokuseiken fighting skills he learned from both his adoptive father and his mentor, Tung Fu Rue who is the shih-fu of both the art of Hakkyokuseiken and the art of Bajiquan. Andy decided to perfect his own martial arts style in Japan to differentiate himself from his older brother by being taught the Shiranui-ryū Ninjutsu (Shiranui Style Ninja Technique) and a form of empty-handed combat called Koppōken.
Doraemon 3 - Nobita to Toki no Hougyoku (Japan)