In the flames of war, the brothers Shen Yan and Su Nian guarded the secret of the virus serum. Every thorngrass in Qingxi Town and every scratch on the microscope hides the hope of life. They fought against cruelty with deception and paved the way forward with sacrifice. Years later, the stitches on the embroidery screen and the seeds in the wind are still telling of that period of persistence.
