Enter the wrong house, marry the right man. Su Wan's sister Su Qing is about to marry the head of the Fu family to join forces. Su Wan, the eldest daughter, can't live without her sister, so she also gets married to the superstar brother of the head of the Fu family. But who would have known that on the wedding night during a thunderstorm, something went wrong and the two sisters ended up in the wrong room. She, her brother Chunfeng, and her sister and brother Liangxiao were already done, so they had no choice but to exchange engagements.
