Young Lu Annian takes up his post in a moment of crisis, becoming the registrar of the dilapidated Qing Shan County. Unexpectedly, he gains help from a system: the larger the local population, the more grain it produces. The county walls are crumbling, and the people are displaced and homeless. Starting with a bowl of hot porridge, he takes in refugees, checks household registrations, and implements relief through work. He leads the people in repairing homes, building workshops, and strengthening the city defenses, gradually rebuilding local order. The desolate little town slowly comes back to life, as refugees gain household registrations, find work, and finally establish homes. But as Qing Shan County grows increasingly prosperous, danger follows. Only by standing united with the people of the entire county can Lu Annian protect their homeland and rekindle the lights in countless homes.