Let's roll back time to the night Gao Fei was ambushed.
After Gao Fei had slain Tie Niu, he quickly returned to the City Lord's Mansion and then took a large amount of healing pills. Once his condition had stabilized, Gao Fei began to ponder... Ponder what? Of course, it was about that palm strike that killed Tie Niu.
Up to now, Gao Fei still hadn't figured out how he had managed to unleash such a terrifying palm strike.
"Self-created divine skill," the voice of Xuan Jizi echoed in his mind with admiration, "You little guy has really hit the jackpot! You've actually created a divine skill! And it's one with immense power at that! Incredible!"
"Self-created divine skill?" Gao Fei blinked, "What does that mean?"