In the past three years since the war to overthrow the old government, the headquarters and branches, which had to join forces as a last resort, have continued to have conflicts, and wars of various sizes have continued one after another. It has lasted for two years now. As the informant and guide sent by the headquarters to the branch, Yu Jing accidentally met the most difficult sentry in the branch, Ling Ming, and became his partner by accident. The gears of fate turned quietly, and the story between the two began.