Xiaomeng, a modern young woman, is betrayed by her fiancé. While protecting her best friend, she is pushed down by the scumbag and falls unconscious. When she opens her eyes, she discovers that she has traveled back in time and become Jiang Si, the wife of a young marshal who was attacked on her wedding night during the Republic of China era. Mistakenly believing that her soul has arrived in the underworld, she causes one hilarious misunderstanding after another. The cold-faced young marshal, Jiang Yanzhi, goes from despising her to falling deeply in love with her, and the two go from bickering enemies to lovers willing to die for each other. To protect her husband as he goes off to war, she drinks poison administered by her love rival, Cheng Yun, and tragically loses her unborn child. Then comes the devastating news that her beloved has died on the battlefield. Wearing her wedding dress, she takes her own life to join him. But when she awakens, she has returned to the modern world, where, in a hospital corridor, she falls into the arms of a doctor whose appearance is identical to her beloved's.