Reborn as a Cannon-Fodder Fake Heiress, She Works Hard for a Happy Ending

[Not a story about a side character's comeback and face-slapping the heroine. The original heroine will stay true to character.] Jiang Sheng wakes up one morning to discover that she has transmigrated into a book, as the villainous side character who stole the real heiress's place in a story about two daughters, one real and one impostor! After seeing the miserable fate awaiting her, Jiang Sheng trembles with fear. After weighing her options, she decisively chooses a side. She diligently plays the role of an adopted daughter, mends the relationship between her adoptive parents and her powerful older sister, and prepares to leave the marquis's estate while finding a way to secure her future. But gradually, Jiang Sheng realizes that things are slipping further and further out of her control. Someone provokes Jiang Sheng at a palace banquet, accusing her of stealing the real heiress's place. The real heiress, Jiang Xian, whom everyone says resents Jiang Sheng, raises an eyebrow. “Bow and apologize.” Someone mocks Jiang Sheng for being a fake heiress who can't afford anything from the capital's finest jewelry shop. Jiang Xian snaps, “Give Yunyan Pavilion to my little sister.” Someone foolishly takes Jiang Sheng hostage. Jiang Xian says coldly, “If you don't want to live, then don't.” Jiang Sheng, who somehow became her older sister's beloved darling, says: “Being carried to victory is actually pretty nice.” Since her powerful older sister is giving her so much, Jiang Sheng, who knows the plot, feels guilty and decides to give her a few spoilers! Q: What's the biggest golden finger you've gained since transmigrating, Jiang Sheng? A: Having so many powerful people around me. Not just my sister, but also the person who sits behind me. ~ When she first arrived in this strange world, Jiang Sheng did her best to calm down as quickly as she could, but the terrible fate awaiting her in the original book still sometimes filled her with unease. As one mystery after another was unraveled, even the questions that had once baffled her found their answers. Only then did she suddenly realize that she was not alone after all. Jiang Sheng always thought she had transmigrated into a book, but it turned out she had returned home.