Because of her eldest sister's design, Su Tang, an official lady who was originally the main wife, was forced to become the concubine of General Qin Xiu for trial marriage. She knew clearly that the man wanted to marry her eldest sister, but because of threats from her family, she had to do everything possible to please her. Fortunately, this man was not as cruel and ruthless as the rumors. With her continuous efforts, the two finally had feelings for each other. But at this moment, the eldest sister came to her door and demanded that the original engagement be fulfilled...
