The story takes place during the Tang Dynasty and revolves around a secret government agency trying to obtain a national treasure weapon called the dragon sword. To do that, they assassinated two great martial artists, leaving their kids to survive in the chaotic world. They are taken in and taught martial arts by Elder Yang. In their journey in Jianghu to uncover the conspiracy of the secret group, they meet the love of their lives in Cai Wen Jing and Fan Shi Qi. Adapted from the anime "The Degenerate-Drawing Jianghu" (画江湖之不良人) by Beijing Ruosen Digital Technology Co., Ltd. (北京若森数字科技有限公司).