Su Qing'er, a modern martial arts champion, accidentally travels through time and becomes a notorious wicked woman in an ancient village. She starts with a completely impoverished household, a timid stepfather, a bullied little brother, and troublesome relatives demanding repayment of debts. After awakening her innate superhuman strength and putting her modern knowledge to use, she knocks the debt collectors away with a single punch and resolves to lead her family out of poverty. To avoid an arranged marriage imposed by the authorities, her stepfather brings home a handsome, sickly man to become her live-in son-in-law. Little does she know that this charming beauty, who constantly begs, 'Wife, protect me!', is actually Qin Anyuan, the Seventh Prince of the current dynasty. While Su Qing'er builds the family's fortune with modern knowledge and crushes one villain after another, Qin Anyuan secretly makes his own plans. When a rebel army finally arrives, both of their true identities are exposed. Together, they put down the rebellion and create an extraordinary legend of romance and sweetness.