Yu Xi was originally a young man who pursued peace during the Warring States Period, but his soul was accidentally transported into the body of a mediocre young woman in a modern city who was experiencing a low point in her life. In modern cities, vested interests such as the rich second generation and children of aristocratic families are jealous of Yu Xi's extraordinary abilities and rapid rise, and constantly hinder her development and undermine her plan to establish a new order. If Yu Xi cannot successfully adapt to and change the modern urban pattern, she will not only lose her unfulfilled ideal of peace during the Warring States Period, but she will also be unable to make up for the regrets of the original owner. At the same time, the constant conflict between the way of thinking from the Warring States Period and the modern society ruled by law and the sophistication of the world seriously affected her actions and judgment in modern times. People around her also misunderstood her because her acting style was unconventional. More urgently, Yu Xi's soul origin in the Warring States Period was lost due to time travel. If she cannot achieve success and stabilize her soul in the modern city as soon as possible, her soul will dissipate. In conflicts with modern vested interests, the crisis of trust between both parties has intensified and relations have continued to deteriorate. However, Yu Xi relies on her characteristics of decisive killing and calm mind, and uses the "dimensionality reduction strike" ability brought by her to continue to grow in the predicament, strive to break the shackles of class, and achieve her goals step by step.