After divorcing, Amy lost her daughter and raised her son alone. One day, while visiting her grandson, she saved Sophie and met CEO Mr. Smith, who hid his identity and married her. Although she was bullied by her in-laws, Smith always rescued her, defending her and improving her life. Her kind but inept son eventually sided with her against his wife's family. Later, Amy learned Smith was a billionaire and that Sophie was her long-lost daughter, reuniting the family.