The crisp sound of a lock clicking echoed from outside, the door creaked open, but who walked in surprised Su Qingyu.,"You have nothing on me except for being the legitimate daughter of a Marquis's family. If it weren't for your family background, how could you possibly surpass me",For Cheng Ruijin, her family background was like a thorn piercing her heart. Fortunately, three years of forbearance had not been in vain.。