Early Tang Dynasty: the Scribes in the East Palace Are Not Good Enough, so I Want to Farm.

[Travel + farming + business + medicine + staff + light system] In the second year of Wude, when the Tang Dynasty was first established, Zhang Qin, a peasant student, traveled through time and became a captured young man, but was unexpectedly recruited into the East Palace by Li Jiancheng. Even though he was not familiar with history, he also knew about the inheritance system of the Xuanwu Sect. How dare he be an enemy of the strongest carbon-based creature in the seventh century, so he just wanted to survive, but found that absolute neutrality would only make things worse. So he started farming, growing medicine, and growing vegetables, using the classified "library" in his mind to retrieve knowledge when necessary, and step by step demonstrate his ability to benefit the people, so as not to fall into the Xuanwu Gate. Unexpectedly, he accidentally avoided the Xuanwu Sect and changed the inheritance method of the Li family. Slowly, Zhang Qin became a heirloom passed down from generation to generation in the Li family... I don't believe it. The Tang Dynasty, armed with encyclopedias, could not build a fleet or destroy the Japanese species...