**After escaping a palace coup, Princess Yongjia of the fallen dynasty endures humiliation and fakes her death to disappear. But an imperial decree marries her off to Prince Gong, the very enemy who destroyed her country and once drove her off a cliff with his own hands. Red candles flicker, and she faces her sworn enemy, who does not recognize her. Within the prince’s sprawling estate, she plays the docile bride while secretly plotting her revenge. He senses that his new princess has a complicated gaze, as if she is hiding countless secrets, and he cannot help probing into them, only to fall deeper with every step. When the truth tears their world apart and they turn their swords on each other, Xiao Yu grits his teeth: “Murong Xi, how dare you deceive me?” Will he exterminate her entire clan, or keep her locked at his side? The realm and love, hatred and forgiveness, all hang on his decision.