Late Han Dynasty Butterfly

"A butterfly flapping its wings in South America eventually triggered a tornado in Texas." This is the butterfly effect - sometimes a small thing can change the entire world. What if there was such a butterfly in the late Eastern Han Dynasty that many people are familiar with? Things to know before visiting: The settings in the text include both romance settings and official historical settings, so you don't have to stick to them. The creation of the characters in the article and the unique magic modification setting represent the author's own understanding and interpretation of his ideas. Discussion and consideration are welcome. The author has camp bias, but tries his best to be objective. If you have different opinions, you can express them in the comment area