Arc 2
Apparently, she had entered into a book whose main themes were politics, murder, more politics, and even more murder, with romance as a subplot. The book, 'Zhi's Dynasty', told the tale of a poor boy, Zhi Cheng, who, after suffering greatly, with determination, strength, and a strong sense of justice, climbed the ranks to become a formidable general and, eventually, an emperor.
The reform target was Xi Ming, the tyrant emperor of the previous Xi Dynasty, which later became the Zhi Dynasty.
Xi Ming was an emperor who had no care for the people, killed at will, and started unnecessary wars, which led to the gradual decline of the dynasty. However, unlike Gu Yan from the previous world, Xi Ming was not inherently evil. He had a tragic backstory that caused him to become a cruel tyrant.