In my previous life, I was a princess who belonged to my family and the world. You were the lord of the enemy country. When I was trapped by you, I blocked the sword that stabbed my brother with my body. The sky was stained with blood. My brother was very sad. But you hugged me and left. After all, you gave up the best opportunity to besiege my brother and just took my body with you. I left my body and promised on my grave that if there is an afterlife, you would keep me safe for the rest of my life. In this life, I am the youngest daughter of the Shangguan family. I have been favored by my father and brother since I was a child. But I don't know whether this happiness will be fleeting, and whether your promise will be fulfilled in this other life...