A crisp click of a lock echoed from outside, the door creaked open slowly, but the person who entered surprised Su Qingyu.,Because she had no children, her mother-in-law made things difficult for her, and her sisters-in-law mocked her. She endured all of this by herself.,"You only have the status of a legitimate daughter of a marquis's family. In what way are you superior to me If not for my family background, how could I possibly lose to you"。