A Life Reversed: The Rules of a Swapped Family

[Dual female leads + real and fake heiresses] After the Lin family's real daughter, Lin Xi, goes missing, she is adopted by a working-class family and grows up carefree and independent. Meanwhile, the adopted daughter, Lin Wei, spends years stifled by the rules of a wealthy household. Fate brings them back together as adults. Lin Xi uses her allowance to make Lin Wei stay and teach her proper manners, and the former "fake heiress" becomes a devilish instructor. The two butt heads over table etiquette and business negotiations.