Married to My Husband's Uncle

Zia Blanchett binge-reads an angst-fic, gets mad at the female lead, has a heart attack, and transmigrates into the book as the female lead. Faced with the heartless male lead, hypocritical adopted sister, and clueless parents, she confronts the male lead and exposes her adopted sister's facade. But after her defiance, faced with the male lead's overwhelming power, Zia Blanchett is pushed into a corner.