At the end of the Dasheng Dynasty, strange phenomena came from the sky. First, there was a three-year drought, then extreme cold and ice, followed by a locust plague. The dynasty collapsed, and the emperor changed his son and was eaten.
After the heroine Qin Yuan became the master of the former dynasty's mechanism, she became the guardian of the royal tomb incognito. She has a withdrawn and cold personality, and knows that in troubled times, people's hearts are better than ghosts. When the refugees and rebels tried to dig up the treasures of the imperial mausoleum in exchange for food, she did not escape. Instead, she used the intricate traps in the mausoleum to turn it into a Shura field that devoured the greedy.
While guarding the mausoleum, she rescued Gu Hanyi, the secret agent leader of the Imperial City Department who was seriously injured and dying. From the initial testing and defense of each other, the two later cooperated to survive in an environment of extreme scarcity. Qin Yuan is responsible for "building walls and accumulating grain", while Gu Hanyi is responsible for "operating and researching information".
As various rebel armies and warlords approached, Qin Yuan broke the ancestral system, opened the mausoleum and palace as a stronghold, recruited skilled refugees, and established a feared "mausoleum guarding army." She does not compete with the world, but the world moves because of her. In the end, on the ruins where all forces perished, she defended a pure land and reshaped the civilized order.
