Transmigrated as a Fake Heiress in Republican-Era China

Female lead's perspective: Yu Youtang was transmigrated into a novel about a real and a fake heiress before she was even born, becoming the fake heiress. According to the plot, the real heiress would be brought back when she turned nineteen. From then on, Yu Youtang would become increasingly unbalanced, repeatedly scheme against the real heiress, and ultimately meet a tragic end. To avoid the ending in the book, Yu Youtang spent nineteen years living quietly with the Xue family, keeping her head down and never fighting for anything. She planned to give up her place as soon as the real heiress returned, take the little nest egg she'd saved, open a small restaurant, and live a quiet, ordinary life. Yu Youtang thought she would leave her past behind for good, but just after the restaurant opened, one old acquaintance after another came rushing over to stand up for her. Only a certain eldest son of the Xue family remained cold and heartless. He tossed her a pair of bracelets and forbade her from calling him big brother ever again. Only later did she learn that they were heirloom jade bracelets passed down by the Xue family matriarch. Male lead's perspective: Xue Huailin had a secret: he treated Xiao Qi, the daughter of Fourth Concubine, differently from everyone else, and was afraid someone might covet her. To stay by her side, he suppressed himself day after day, never daring to cross the line. Until one day, he learned that his seventh younger sister was someone else entirely. The bad news: she wasn't his sister. The good news: he no longer had to fear losing her. Because the only person who could stop him from plucking this crabapple blossom was himself. Reading guide: 1. A carefree, naturally airheaded, adored female lead x a doting, fatherly man in public and a gloomy, possessive ghost of a man in private. 2. The real heiress is not vilified. 3. Set in an alternate Republican-era China, with no allusions to any real historical people or events. Theme: Fate is a coincidence of destiny.