True and fake heiress short dramas

A DNA test blows the family apart. The daughter who grew up poor comes home to find another girl wearing her name, her clothes and her parents' affection. What follows is a war of dinner parties, framed accidents and whispered lies, with the true child slowly proving she was never the one who needed rescuing.

DramaSpot lists 2,698 of these, from 21 apps, and a typical one runs 56 episodes.