Modern nursing supervisor Liu Wenying unexpectedly passes away and transmigrates to the Great Gu Dynasty, reduced to a wretched woman who just lost her husband and was heartlessly driven out of the house by her in-laws. To support her baby daughter in swaddling clothes, she finds herself at her wits' end and goes to apply for a position at the Duke of Yu's Mansion. Relying on her solid and professional nursing skills, she successfully passes the rigorous assessments and manages to enter the mansion with her daughter. After entering the mansion, she meticulously cares for the young master of the household, restoring his physique to daily vigor and health; she also applies her nursing knowledge to carefully regulate and treat the paralyzed elder madam. Her recuperative skills gradually spread throughout the capital, and even the Grand Princess and a crowd of noble mandated madams flock to her doorstep, asking for her help to regulate their health.