At the Beginning of the Tang Dynasty, I Summoned the Player to Counterattack!

[The Fourth Natural Disaster] + [Infrastructure Maniac] + [Farming] Travel through the Tang Dynasty and become Du Feng, a sideline disciple of Du Ruhui. He originally thought that he could get ahead by taking the imperial examination, or that he could live a prosperous life by doing business. However, an imperial edict shattered Du Feng's illusions. Good news: Li Shimin adopted him as his adopted son and treated him as a prince. Bad news: He is a proton and has to go back to the grassland with Jieli Khan for a few years. Starting as a hostage, can you survive if you fall into the hands of the Turks? Just when Du Feng despaired of the future, he activated the player summoning system. Summon players to come, take them out of the wilderness, and create a paradise together. White salt, cement, papermaking... Various epoch-making technological dimensionality reduction strikes have made Daxia's name resound throughout the world. Until Daxia's national power far surpassed all other countries, Du Feng led the players to counterattack Datang. Du Feng kicked over the dragon chair and clamped his sword on Li Shimin's neck. "I, Du Feng, rebelled today!" "Li Shimin, please call me your majesty!"