I am the medical girl Shen Yan picked up from the battlefield. He taught me how to read and write, and made me his lieutenant, but he never allowed me to step into the study. Then I opened the door and saw another woman's portrait all over the wall. The prince laughed at him for not marrying a wife at the age of twenty-seven, and he played with the wine glass carelessly: "Just find any woman to deal with it, like the one next to me, that's fine." That night I blocked the poisonous arrow for him, and before I died, I asked him: "Now, can you take me into the study?" He picked me up and rushed to the study like crazy, begging me heartbreakingly not to die. But in the center of the study, there is a painting that is about to be completed that looks exactly like me. "She is your sister," he choked, "I have been looking for you for ten years..."