The Beiyue Dynasty was in turmoil, and the Xifu Dashi Kingdom was afraid of being implicated, so he ordered Lin Rongmei, the female guardian of the Xifu, to escort the Xifu princess to get married. Unexpectedly, Lin Rongmei accidentally lost her memory and accidentally entered the Beiyue Army. She met Beiyue Jiu, who was secretly investigating and alias Su Jian. Prince, the two of them work together to break the situation, quell the chaos in the Xifu, and determine the cause of Beiyue. Their love secretly arises... However, Lin Rongmei's memory recovers, and the various truths and entanglements that come with it make the fate of the two of them fall into difficult choices under the world's national affairs.
