It's time for the men to collect their reward, but they can't find anyone to protect Lin-Xueer, so they ask the old man to help them protect her for a while. The old man doesn't seem to care, so the men ask him to heal the young man and give him the secret art of "barbaric force punch" , which is basically a form of boxing. The art teaches you how to use your fists to smash rocks, open mountains, and launch punches from distance. It also teaches you to fight with your fists in blood, which will protect you from self-inflicted injuries. It takes two months to master the art, but it's already working!