The protagonist's name is Lin Jing'an, and by chance, Lin Jing'an and Lin Mo died at the same time. Lin Jing'an inexplicably time-traveled to Lin Mo. At first, he was not used to it, and was unwilling to accept the fact that he had time-traveled. He tried every means to return to modern times, but to no avail. He began to gradually accept the fact of time-travel, using Lin Mo's identity, and relying on his modern way of thinking and knowledge. He accumulated knowledge, improved agricultural tools, improved fertilizers, improved the living environment, put forward many theories that were beyond the times, and designed many items that were beyond the times. He gradually attracted the attention of Li Zheng, the county magistrate, and even the Duke of the Five Surnames and Qiwang of the Five Surnames. Later, he improved metallurgy, improved firearms, evolved battle formations, invented horseshoes, etc., And gradually improved the laws of the Tang Dynasty by relying on his familiarity with modern laws before time travel. Finally, with his excellent ability, he made great changes in the early Tang Dynasty, turning the entire Zhenguan period into a real "Zhenguan era". During this period, the protagonist develops feelings for the daughter of the Taiyuan Wang clan and the royal princess, who are among the five surnames and seven favorites. There are ups and downs, but in the end, the lover finally gets married. In the end, the protagonist is granted the title of wife, and has three good harvests in love, career, and family. After changing the Tang Dynasty, he left overseas and became a native emperor in Australia. The game ended in the world.
