I learned it from butcher Hu when I escaped from the hero altar. According to the relevant information, the basic knife method needs to reach level 20 in the game of runaway heroes. Go to Ping 'an Town to talk to Butcher Hu, then go to Yuelai Inn to talk to the chef and give Butcher Hu five chicken legs. After choosing the first scheme, you can learn a unique skill: fast bone cutting. The runaway hero is a role-playing game produced by Shanghai Xiaofeng Network Technology Co., Ltd., which focuses on funny martial arts style, and creates a more distinctive game mechanism and system optimization with social copies, which can bring more exquisite martial arts game elements.