The Yu Dynasty valued literature and education, and women could become officials. Ye Nannan, the daughter of the Ye family, is smart and exquisite. She is known as the "little koi" when she enters Yuqing College. Her family fortunes suddenly changed, her father died and her career was ruined, and she fell from being a rich woman to a handyman. She stayed in the courtyard sweeping the floor and doing laundry, but she always treated others with a smile. Misfortunes never come close to her, dead flowers bloom because of her, and unjust cases are solved by her. The dean secretly observed and suspected that his life experience was extraordinary. A legend of changing fate against fate quietly begins.