I am Lin Zhenzhen, the product manager of 2026, rational to the core. I live in the old house of my best friend Zhou Lingyi on Yihe Road, doing AR restoration projects, but at ten o'clock every night, I share a room with a lawyer from the Republic of China in 1937. He is Shen Zhengze, a gentle and gentle lawyer of the Republic of China, who is in Nanjing on the eve of the Japanese air raid. We share the same space, but are separated by eighty-nine years of blood and fire. He investigates cases and I solve puzzles; he protects the rule of law and I protect memory. When a watercolor painting appears in two time and space at the same time, with the word "order" written on it, we understand: this old house is a crack in time and an anchor of destiny. He said: "See peace for me." I said: "I remember your name." This is not time travel, but a two-way rush between history and the future. One uses his life to protect order, and the other uses memory to fight forgetfulness. Our story begins tonight.