Three Kingdoms: I Killed Dong Zhuo at the Beginning

At the end of the Eastern Han Dynasty, Emperor Ling died and Luoyang was in chaos. Dong Zhuo Beimang Jiujia controlled the government affairs, and Cholera ruled the country. Liu Mang fell from the sky and killed Dong Zhuo, becoming a righteous assassin of Dong Zhuo. The Xiliang army was leaderless, and Bingzhou Dingyuan was eyeing him. Where should Liu Mang go when faced with the pursuit of the Xiliang Army? Make up history, don't bother to study it, any similarities are purely fictitious