The unpopular Sixth Prince unexpectedly married a concubine from a minor official family. A concubine was nothing more than a mute girl. This new princess, Ran Ran, was not born mute. It was said that she was born mute because of an accident when she was young. She was a poor woman, as her biological mother died when she was young, and she had to make a living under the cold eyes of her aunt and two older sisters. Unexpectedly, the mute girl Ran Ran will one day fly up a branch and turn into a phoenix. After becoming a princess, she still cannot immediately investigate the death of her biological mother...