Back to the Great Han Sheng Hua Xia

The protagonist was the general manager of a small company in the 21st century. He was beaten up when he was drunk and traveled back to the end of the Han Dynasty. Facing the upcoming Three Kingdoms Era, he wanted to see how the protagonist created a peaceful foundation from the ordinary with a thousand years of knowledge that surpassed the era. He made friends with scholars and generals, fell in love with troubled times, and started from an ordinary person to the top of society.