Ji Yuying is a mountain girl who married a scumbag who wanted to trade his younger sister for a bride.
Because of her husband's lust, she was unable to conceive during their first two years of marriage, and people gave her the nickname "Mule." She always hoped for a better life, overcoming obstacles and building a family and career as she went from failure to success.
Her husband indulged his lust and abused her. He was caught cheating and had his leg broken. First, he angered her father so much that he starved himself to death, then he beat and injured her mother. He resorted to fraudulent superstition to swindle people out of money, and got what he deserved.
With her own hard work and the help of righteous people, Ji Yuying raised two sons. Her eldest son succeeded in his career, and her second son excelled in his studies. At last, she fulfilled her wish.