After I Transmigrated into a Book, I Conquered the Villain with Metaphysics

[Sweet romance with a touch of angst; unlucky female lead and an ill, possessive CEO; doted on by everyone; mysticism; transmigrate into a book; substitute bride] Called the reincarnation of a jinx, she died a horrific death at the hands of a killer. After transmigrating into a book, she became a runaway substitute bride. To stay alive, she had to cling to the villain's side, acting sweet and obedient, even if it cost her everything. With her secret identity hidden, she tended to the frail, possessive CEO Yan Lengmu with medicinal meals to nourish his health, feng shui tips to change his luck, and more. Sometimes, she even served as his sleeping pillow and stayed the night. She was as obedient as could be. But her three older brothers would do anything to help their little sister escape this “den of devils.” She was the apple of their eye, their precious darling! Could she really endure all this? Eldest brother, a famous business tycoon at home and abroad: “I'm taking our little sister away today, no matter what.” Second brother, an international top-tier model: “Our sweetheart belongs with us. We'll be the ones to spoil her.” Third brother, a mathematical genius: “In theory, only I should love Yuqian.” Yan Lengmu: “Sorry, brothers-in-law, you've got it all wrong. My wife has to sleep beside me every night.”