In her previous life, she was a secret guard controlled by others, and he was the younger brother of the current emperor, a respected prince.
The wide variety of identities is doomed to end this tangle.
But he loved her so much that he was willing to give up his life for her.
She never bothered to express her inner feelings, but he could easily understand her every time, no matter how well she pretended. When she was wronged, he excused her; when she frowned, he was worried; when she was happy, he showed his face.
In the end, it was she who failed him, and she failed him who was such a good person. She thought that there was no other person in the world who could treat her better than him. But in the end, she still failed him.
In this life, he is still as beautiful as a crown jewel, handsome, graceful and elegant. When she vowed to love him well, his warmth and smile were given to another woman...