Song Xiaoyun, a modern-day heir to ancient medical knowledge, unexpectedly travels back to 1973. Before she can enjoy even a single day of life as a capitalist's daughter, she suddenly finds herself bearing that identity. Her fiancé, who once swore eternal love to her, sends an urgent telegram demanding to break off their engagement. A woman reborn from another life believes that stealing Song Xiaoyun's fiancé will let her live the life Song Xiaoyun had in her previous life. But who could have imagined that after getting married and struggling through one year after another, the man whose career had once advanced smoothly in his previous life would find his progress completely stalled?