The legitimate princess of Yan State, Yan Cangyue, was bestowed a marriage to marry the grand general of the state-protecting Shen Lingge, whom she had admired for years. After marriage, she was plotted against and poisoned by his cousin Su Wanqing, and a hundred family letters were all burned. Cangyue's lovesickness broke her bones, and she died full of grievances. When Shen Lingge saw through the truth, his remorse and pain gnawed at his heart, turning his hair white overnight. Once reborn, she becomes the empress of the middle palace of Xiao Jingyuan, the tyrannical ruler of the enemy state. Xiao Jingyuan suffered greatly in his youth, and his temperament is paranoid and tyrannical; remembering her past grace of saving his life, he alone gives her thousands of favors, unafraid of criticism from the court and the public. Beacon fires burn between the two states, Shen Lingge is defeated and captured, and is shocked to see the resurrected old friend, begging to renew their former relationship. Old dreams entangle, new affections are lingering, but alas, court disturbances and the pain of losing a son crush all kinds of affection.