She owed him a debt of love a hundred years ago, and she traveled back to his time more than a hundred years ago just to repay him, so that they could owe each other nothing. It was an era of war and chaos, but also a great era. A young gentleman from a noble family met and fell in love with an unknown girl from a poor family. In the years of war, when she could leave the Republic of China and return to her own era, the love debt had been repaid, but she had fallen deeply into his tenderness. Where should she go? He said to her that he would never leave, and she said to him that she would never give up until death. In the chaos of war, will they eventually hold hands or be separated and never owe each other?