Transmigrating into the beauty and spy Ye Zhiwei who must serve the paranoid emperor Xie Chengyuan, she is bound by a system where only by strategizing against him can she survive. Yet that first fleeting glance of distraction at their initial meeting directly nets her a negative ten in favorability. The emperor's mind is unpredictable and his moods fickle; an insincere polite remark loses points, and a deliberate display of eagerness also loses points. In the deep palace every step is walking on thin ice, as she maneuvers cautiously—on one hand dispelling suspicions of being a spy, while on the other trying desperately to draw close to that cold and aloof heart. She asks only to safely scrape through the mission without ever daring to hope for romance, but as day after day passes together, romantic feelings quietly take root.