Players, prepare equipment, dress up as medieval knights, cartoon characters and other behaviors, which is costume cosplay (Cosplay).The role-playing method is to give the subjects a hypothetical role, require them to perform their own behavior, observe, record and evaluate the role-playing behavior according to the requirements of the role, and evaluate the proximity or competence of the role. ww.ccosplay.com/ Whether it is the sensational route of martial arts RPG, the one-line multi-branch mode of Japanese RPG, or the open plot mode of European and American RPG, storytelling is always the same theme. Characters are the characters played by the players. This element and inclusion in the plot, but also outside the plot, can be said to be two major elements that complement each other.