Crowned in Blood: The Vampire President's Contract Wife

Designer Alara is brutally betrayed by her fiancé and stepsister, stripped of her family fortune and her father's posthumous works. At death's door after falling off a cliff, she meets William, the hidden ruler of the underworld night. They seal a blood contract: he grants her wealth and power to win back justice, at the price of sipping a little of her blood each day. Transformed into the reigning mistress of Vance Group, she strikes back step by step—exposing the plagiarism, unveiling the commercial fraud, and gathering all the evidence of her stepmother's tax evasion and their kidnap-and-assault crimes, so every betrayer is punished by law. Along the way William silently guards Alara, and their transaction grows into a genuine bond. The story upholds the positive value that good and evil are repaid: the heroine reclaims everything through her wits, not by dependence, conveying the strength of staying true to oneself and that evil brings its own punishment.