Martial Arts School System: Selling Cheats at the Beginning

Yi Feng travels through the fantasy world and installs a useless system that only teaches blacksmithing and painting. After you have mastered your skills, you can only make a living by selling martial arts secrets. The weapons and mythical beasts in the backyard of the martial arts hall are noisy every day and are not favored. Until the life and death battle between Qingtianmen and Xuanwu Sect, the monks gathered in Pingjiang City. Let's see how Yi Feng counterattacks by relying on the abolished system.