Su Qian, a quirky “Ghost Doctor” devoted to medicine, finds Prince Rong Jing in the wilderness, poisoned by the deadly “Bilu” toxin and barely clinging to life. To cure him, the cold and aloof Rong Jing has no choice but to stay by Su Qian's side. From then on, this brilliant doctor with her unconventional ways keeps him firmly under her thumb: from working off his debt to “special-effect” medicinal baths, from blood-circulation exercises to acupuncture “accidents” that leave him at a loss for words…
She smiles sweetly; he can only look on with resigned exasperation. She is focused on collecting her three hundred taels of gold in medical fees, but before long, he catches glimpses of the kindness and sincerity beneath her mischievous smile. As Rong Jing's old enemies and the struggles at court close in, their relationship, which began as a debt, quietly changes. See how Su Qian wields her needles and skillful hands to set the world in motion, winning the heart of the cold-faced prince and ultimately embracing a life of splendor with him.