It’s great to be reborn and marry your brother, but your ex-husband cried and called you sister-in-l

Introduction: Gu Baiyu didn’t know that she was just the female supporting character in a time-travel novel until her death. And the real protagonist is her concubine Gu Ruanruan who came from another world! Even her death was just to make way for the great love between the concubine and her husband! After being reborn, faced with her husband's flattery and the concubine's help, Gu Baiyu gave up her career! Why should she sacrifice for other people's love? The brother who is married to her husband will be the hostess of the prince's mansion. Wouldn't it be nice to have the male and female lead kneel down and serve tea, and call her sister-in-law? So she approached Xiao Yanlin, the famous Daye God of War. "I am the legitimate daughter of the prime minister's house. Now I am eighteen years old and ready to get married. My heart has just begun to fall in love. I want to marry you.