She's a Metaphysics Master. Why Mess with Her?

[Feel-good revenge, metaphysics, revenge, face-slapping, punishing scumbags, a heroine who isn't saintly, possessive and yandere male lead] Su Jimo, an heir to the mystic medical arts, descends the mountain to save her master and uncover the truth behind her parents' deaths. But she discovers that her master's fate is bound to Xie Wujin's: they will live and die together. So she agrees to take her cousin's place and marry him. Everyone at the Xie residence says she's a country bumpkin marrying above her station, and waits to see her make a fool of herself. But no one knows that her mastery of mystic medicine is extraordinary. She can save people on the brink of death, or make wicked people suffer the consequences of their own actions. As for Xie Wujin, his fate is incomplete, and he has been tormented by baleful energy for years, often losing control and falling into a frenzy. The greatest physicians in the land are helpless, all saying he won't live more than a few months. But Su Jimo declares, “I'm the only one who can save him!” During one of his uncontrollable episodes, he accidentally bit her neck. The moment her blood passed his lips, the violence and pain that had tormented him for years ebbed away like a tide, leaving behind a peace he'd never known. Only her blood could soothe him. From then on, he became addicted to her. By day, he was the Xie family's heir, a man above all others. By night, he belonged in the palm of Su Jimo's hand.