Mu Sheng is the most dazzling pearl in the Li Kingdom, and Tuoba Xuanji is the swiftest eagle in the grassland. They met in an accident. At that time, Mu Sheng used the pseudonym Lin Yao and rescued Tuoba Xuanji, who was dying from a plot. At that time, Tuoba Xuanji had a Han name - Xiao Ting. At that time, there was no identity barrier between them, only the resonance of two young souls under the moonlight. However, happy and beautiful days are like a dream. There will always be a day when the identity is exposed. Facing Mu Sheng's questioning, Tuoba Xuanji made a vow: "Asheng, if I ascend the throne, I will offer you the land of Yan as a job, in exchange for your peace for the rest of your life. If you violate this promise, you will never lose your love, and you will be lonely and helpless for the rest of your life." The son, the last queen, will be eaten by wild beasts after his death, and his soul will never have peace. "Three years later, Tuoba Xuanji personally led an army to conquer the Li Kingdom. The emperor of the Li Kingdom died in battle, and the queen died for her love. Mu Sheng looked at her former lover, who was now the enemy who had forced the destruction of her country and family, and she resolutely fought and died for her country. The oaths Tuoba Xuanji made back then were fulfilled one by one after Mu Sheng's death.