Jeff was found by a martial arts master one day in China. How he got there is unknown. What is known is that the master raised Jeff like he was his own son. When he turned 6, his "father" taught him all that he knew.
Jeff's real parents are unknown. His master raised him since he was a baby.
he doesn't possess any actual powers. However, on Earth 2, Jeff is one of, if not, the best martial arts master. He knows every kind of martial arts. Since his master found him in China, he can speak fluent chinese.
- Coming soon
Later on, Jeff gets married, and has a son.