In 1275 AD, the Southern Song Dynasty was in danger. Lu Wenyuan, a low-level official in the Lin'an Royal Library, was recruited by a mysterious organization calling itself "The Tomb Keepers". The first and last task he received was not to go into battle to kill the enemy, but to "hide" a list of names that carried the fire of civilization before the city was defeated - hidden deep in the texture of a Ru kiln azure glaze wash that was about to be sent to the kiln.
Eight hundred years later, Shen Qingci, a restorer of cultural relics from the Forbidden City, discovered a microstructure in the glaze layer of this remnant vessel that violated all physical laws under the microscope in the laboratory. When she deciphered the first line of information, a truth that spanned time and space suddenly emerged: her workbench was the final coordinate of the silent operation eight hundred years ago.
Thus, the ultimate spy war unfolding in the time dimension begins. Lu Wenyuan had to complete the "hijacking" of knowledge in the gap between the Mongolian cavalry and the court; while Shen Qingci had to carry out an "acceptance" that was eight centuries late under the scrutiny of modern rules. They have never met, but they are each other's only supporter. The fire of civilization's survival is swaying in the fragile yet eternal azure glaze of this porcelain.
