Shen Xinqing was robbed of her dowry at the beginning when she was used as a wedding tool in the Marquis's residence. She backhandedly made a gambling contract with the "sick" prince Zhong Jingxuan: if she could not earn back the double betrothal gift within three months, she would ask to leave the court; if she could earn it back, he would have to hand over the power of middle-income bridegroom. While everyone was waiting to see the joke, she stirred up the storm in the capital with her modern business thinking. But why did the prince, who should have been in bed, always dig into her walls late at night?