The crisp sound of the lock being picked echoed from outside. The door creaked open slowly, but the person who entered surprised Su Qingyu.,Cheng Ruijin, upon hearing this, not only did not become angry, but burst into laughter several times. Then, gritting her teeth, she said: "I naturally have my own way, but in a while, it will be hard work for elder sister. Don't call too loudly.","Besides being the legitimate daughter of a Marquis, what else do you have that surpasses me If it weren't for my family background holding me back, how could I possibly lose to you"。