A 30-year-old project manager, exploited by her boss and relatives, is diagnosed with terminal cancer and given three months to live. She quits, fights back, and discovers she is secretly married to a wealthy heir. She is also the long-lost daughter of a rich family, while the spoiled heiress was swapped at birth. After facing conspiracies, kidnappings, and crises, she learns her diagnosis was a misdiagnosis. The villains are exposed, she reunites with her real parents, and her contract marriage turns into true love.