The failure of the Shu Han in "The Romance of the Three Kingdoms" is a pity. Although history and destiny dictated it, the author wanted to fully comply with the original idea of "supporting Liu and demoting Cao" and wrote his humble book "The Story of the Three Kingdoms" in a half-written and half-white style to make up for this regret.
This story does not conform to historical facts and is all a joke; it is a joke about the Three Kingdoms for comfort.