Eighty Years of Mountain and Sea Appointments

Do you believe in a fatalistic obsession that spans eighty years and two eras? Lu Shiyan, a top science student, was entangled day and night by an old dream of the Republic of China that had been circulating for twenty years. He had made countless calculations and deductions, but he could never find the answer to the dream. The explosion tore apart time and space, and he fell into the smoke-filled Beiping in 1937, where he met Su Qinghe, a girl in white clothes in his dream. Amid the flames of war, the two made a promise to keep their promise, but the double shackles of time and space followed one after another. The moment the city fell, he disappeared out of thin air in front of her, and the two lives were separated by eighty years. On one side is an orphaned girl in troubled times who spends her whole life adhering to a promise; On one side is a modern scholar who spends half his life traveling against the current to pursue his old friend. The mountains and rivers have long since changed. Can the journey across time and space make up for all the regrets missed in the past eighty years?