He was Zuo Yan, the crown prince of Zhou.
He is Luo Tao, the general of Zhou.
She is the princess of the lost Wei Kingdom, Lingmei.
A meeting in childhood sealed the promise of this life. He said that in this life, he would not marry anyone other than his wife. However, she wanted to marry in a foreign land, so he decided to fight for love and take charge personally.
She never saw him guarding her from a distance. Where should the princess of the subjugated country go...