After I Transmigrated Into a Book, I Became Cannon Fodder

Xia Yi'an was an older single woman in the modern world. Then one day, she transmigrates into a book as the vicious, doomed fake heiress and adored younger sister of seven brothers. She keeps courting death, trying to drive out the heroine, who is hiding her secret identity, and steal her fiancé. In the end, she's forcibly sent abroad and forbidden from ever returning. All she wants is to stay away from the male and female leads and enjoy a quiet life of her own. So why has everything turned out so differently from what she imagined? She and the heroine have become as close as real sisters. And what's with the heroine's brother suddenly showing up? Wasn't he supposed to have no interest in women? So who is it that's pinning her against the wall every day now?