Su Ying, the legitimate daughter of Su Zhe, Minister of Revenue, was betrothed as an infant to Zhou Wei, son of Zhou Bingzhi, her father’s friend and the Left Chancellor. In the blink of an eye, she reaches the age of fifteen, and the emperor personally approves a grand engagement ceremony to be held when she comes of age. The emperor and empress present generous gifts themselves, showing their regard for the two important ministers. Crown Prince Ji Yun attends the banquet with a retinue of princes and princesses. As they enjoy wine floating along the winding stream, Ji Yun catches sight of Su Ying and is struck by her beauty. Her looks, figure, bearing, temperament, and even her sweet, soft voice all match his tastes. Thinking of what is about to happen, Ji Yun cannot help frowning slightly. By now, Su Ying has blossomed into a beauty beyond compare, while her childhood sweetheart Zhou Wei is talented and dashing. The two have long been celebrated as a perfect match. But three months after their engagement banquet, disaster strikes the Su family. To save her father and clear her family’s name, Su Ying has no choice but to use her beauty to serve the crown prince, while her childhood sweetheart Zhou Wei chooses a different path...