The heroine was originally the daughter of a disgraced official. She was married off as a bride meant to bring good fortune to a dying prince, but after he died, she became a sacrificial offering and nearly lost her life. On a whim, and to keep the forces in his harem in check, the emperor brought her into the palace and made her a low-ranking attendant, effectively placing her in the line of fire. Drawing on the art of reading people that her father taught her as a child, she has no golden finger. Instead, she meticulously analyzes others' microexpressions, small gestures, and lines of reasoning to predict her opponents' every move and fathom the unfathomable emperor's thoughts. Armed with psychology, she goes from an abandoned consort whom anyone can trample to someone who sets and breaks schemes, crushing one by one those who harmed and deceived her. In the end, she rises to the pinnacle of power and becomes the harem's sole victor. The highlight is that every victory stems from her rigorous logical deduction and psychological battles, delivering a steady stream of satisfying moments while keeping her intelligence firmly on display.