The Duchess from the Asylum

Sent to a psychiatric hospital at fourteen by her father and stepmother under the guise of treatment, the Winter family's eldest daughter, Ella, returns ten years later armed with culinary, combat, and medical skills. As the sixth bride of Duke Magnus Oksen, she heals his children, uncovers the truth behind her mother's poisoning, falls in love, and destroys a kidnapping plot to seize the Oksen fortune.