Modern young man Chen Mo wakes up from a sudden death and becomes a beggar in a broken house during the Zhenguan period. Bound to the "Datang Construction System", he originally wanted to live and die, but was picked up by Cheng Yaojin and brought back to the mansion. His talent was spotted by Fang Xuanling, and he was secretly favored by Princess Changle. From a poor boy who was looked down upon by everyone, to Li Shimin's personal title of Prince Consort, he refreshed the entire Tang Dynasty's understanding with his arithmetic, explosives, and water conservancy. But Hou Junji's hidden arrows, the prince's rebellion, and the Turks' iron hoofs came one after another - in this life, he not only wanted to survive, but also lived to become the number one prince-in-law of Zhenguan!
