Fan Fei was a native to the city of K'un-Lun and trained from childhood in the sacred art of kung-fu. When she was 15 years old, Fan began sneaking out beyond the sacred city's gates, where she encountered early cavemen. Fascinated by these people and seeing their struggles against the beasts preying on them, Fan taught several of them the basics of K'un-Lun Kung-Fu to allow them to defend themselves. After three months of training, Fan was discovered and declared a traitor for sharing the city's secrets with outsiders; a status that left her condemned and exiled, causing her to be disavowed by clan and family alike. Fei was brought before the cave of Shou-Lao, the holy dragon, where she was forced to watch as her students were horrifically executed by the creature.
In a rage, Fei charged Shou-Lao, with every intention of dying alongside her pupils after punching the dragon in the face, but instead, when she struck the dragon, Fan punched all the way through, blasting through the dragon's mouth and out the back of its head, killing the dragon and coating her hands in its burning blood, leaving her with a dragon shaped mark on the back of her hand and the ability to harness her chi in glowing, burning hands as hard as metal; the first in what would become a long line of Iron Fist.
Fan wandered the earth for a decade- and while she refused to train any more of the early humans she encountered in her exile, she found herself unable to leave them defenseless.
