Reborn in Ancient Times, a Peasant Boy's Path to the Imperial Examination

When he woke up, he became Han Yinji, the fourth son of the third family of the Han family. The family had only four walls and many brothers and sisters. I thought I would have to work hard at farming, but unexpectedly, I had a golden finger of modern knowledge when I was pregnant. I wanted to live a low-key life, but my relatives kept having petty thoughts and it was hard to treat me as a poor family. He had no choice but to pass the imperial examination, improve farm tools, promote medical skills, and build water conservancy. Originally he only wanted to protect himself, but he accidentally benefited thousands of people. Looking at the smiling faces reunited around him, Han Yinji ate melon seeds with satisfaction: This time travel is not a loss!