Concubine's Palace War

After saving the crown prince's life, a nobleman's illegitimate daughter is promised marriage—only for her jealous half-sister to murder her mother, disfigure her, and steal her identity on the eve of the wedding. Three years later, the sister rules as the emperor's favorite consort. But the scarred girl infiltrates the palace with a new face, beginning a deadly game of thrones to reclaim what was stolen from her.