Qinglong Rules the World

This is the most authentic time travel story. The battle of wits and courage with the evil boy, the long conversation with the beauty, the unexpected encounter with the princess, the overt and covert struggle with the powerful officials... He stood on the shoulders of giants and became the most talented man in Korea; he had no foundation, but he rose rapidly in his official career; he did not study the art of war, but he was able to gallop on the battlefield and make achievements; he was an emotional coward, but he won the favor of girls again and again... The country is so charming, the beauties are picturesque, let's see the Qinglong rule the world... It's dull in the early stages, but becomes more powerful after the fifteenth chapter. No cheating, no equipment, just your brain.