The Girl Bullied by My Daughter Came to My Door, Claiming She’s My Biological Child, While the Daughter I’m Raising Is Someone Else’s!

I'm the real heiress who was switched at birth. At twenty, my biological parents found me, and I married the man who was supposed to marry the fake heiress, Liu Qianqian. I became a wealthy man's wife and had a daughter... But twenty years later, a girl with cool, delicate features came to my door and said that she was my biological child, while the daughter I had now was someone else's! Shocked, I launched an investigation, only to discover that this was all a scheme by my husband and Liu Qianqian. Worst of all, the daughter I'd raised for twenty years had known the truth all along.