(Sorry friends, I can't continue my train of thought. I may start over and it will be very different. Friends who have read it, please read it again. I'm sorry, it's just a new book.) 1931, Peking. Lu Chengze, a young archaeologist who returned from studying abroad, is committed to using scientific methods to protect national cultural heritage. During an appraisal of cultural relics, he met Shen Qingwu, a female teacher who appeared to be a young lady from a declining scholarly family, but was actually a member of the underground anti-Japanese organization "Stars". One side is an upright academic guardian, and the other side is a life-and-death struggle on the secret front. The two met, got to know each other, and fell in love because of their common patriotic beliefs. Together, they guard a batch of national treasures that will be moved south from the Forbidden City and are about to be looted by the Japanese invaders. In the smoke and conspiracy, they experience the test of trust, the choice of life and death, and a love that becomes increasingly passionate and forbearing under the hatred of the country and the family. Their love is closely intertwined with the fate of the country, composing a heart-stirring love song of war.