Tang Dynasty: Everyone Has Become Emperor, Who Still Cares About Being a Prince?

[Datang + System Sign-in + Real and Fake Prince + Invincible and Unrivaled + Too Much Regret] Traveling through the Tang Dynasty, Qin Xinhui presented a three-piece set of plows, war horses and good strategies for governing the country. He shocked the government and the public and was appointed as the number one scholar in the new science! I thought I could show off my ambitions, but in order to protect the interests of the family, Changsun Wuji actually accepted Li Shimin's acquiescence and forced him to give up his position as the number one scholar to Changsun Chong, and even planned to kill him! "Since the Tang Dynasty regards justice as nothing, and since all the civil and military officials in this dynasty are like flies and dogs, then the Tang Dynasty should not wait for it!" At the critical moment of life and death, the god-level sign-in system awakens! Integrating the inheritance of the Qinglian Sword Immortal, Qin Xinhui killed one person in ten steps, split open the gate of Chang'an City with one sword, and left an anti-poem full of murderous intent, rebelling against the Tang Dynasty! Li Shimin was furious and issued the No. 1 Sea arrest document. Qin Xinhui was wanted by the whole world regardless of life or death! However, Qin Xinhui, who fled to Tubo, started a crazy cheating road! "Ding! Sign in to Tubo and you will be rewarded with 100,000 Qin Iron Eagle warriors, 50,000 tiger and leopard cavalry, and 50,000 fallen soldiers!" "Ding! Successful sign-in, rewards for the peerless heroes Li Cunxiao, Yue Fei, and Xin Qiji!" "Ding! Successful sign-in will reward famous officials Liu Bowen and Zhang Juzheng throughout the ages!" In just a few months, Qin Xinhui led a historically invincible army of 210,000 to conquer Tubo, captured Songtsen Gampo alive, and founded the "Great Qin", with millions of troops and awe in the world!