Feng is a Kempo prodigy. As a young adult, he was confronted by his master over his outings to fight outside the dojo. This confrontation led to Feng killing his master soon after discovering the existence of ancient and powerful scrolls kept hidden inside Mishima. He then joined the King of Iron Fist to try to get these scrolls.
He was successful, securing the "God Fist" scroll from the corporation. To his surprise, the scroll read: "Destroyer of all styles, the one true ultimate style, it transcends the power of The Dragon God, which exceeds all human ability.". To uncover more information, he joined the King of Iron Fist tournament.
Ultimately, a single tournament was not enough. Feng continues to learn and improve his martial arts to this day, following the God Fist's scrolls letter closely, hoping to unlock his true potential eventually.