These fighters are trained to become powerful demon fighters on an unknown island called Ba Mo Dao (拔魔島). They are trained since young and learned to not let their emotions affect the outcome of their mission and simply focus on their goals, which makes them almost cold when what they face is one of their friends. This kind of warrior has only been mentioned in the manga of "The Golden Pen Touches the Dragon (金筆點龍)" until a young boy named Ji An reveals to be one of them. In KO One React,Cao Ji Li is also a Demon Fighter.