The setting sun is like blood, reflecting the desolate Yun'an City in the north. The city walls are in ruins, bones are exposed in the wild, and there are no roosters crowing for hundreds of miles. She was ordered to do so at a critical moment, and stepped into this forgotten dead city with a letter of appointment. Behind her was the suspicion of the court, and in front of her was a desperate situation surrounded by famine, disease, and foreign enemies. There was no food, no soldiers, just a group of desperate refugees living on their last legs. With her weak body, she shouldered the responsibility of reconstruction, measuring the land among the ruins, and drawing drawings under the lonely lamp on a cold night. The mud when digging canals to divert water soaked through the clothes, the sweat when reclaiming wasteland dripped into the scorched earth, and the sharp blades when resisting plundering cut through the long night. As consciousness flows, there is the desire for life and the reverence for death, the undercurrent of machinations and the ups and downs of people's hearts. In the solemn atmosphere, she worked step by step, turning the desolation into life, letting the deserted city in the afterglow gradually light up with eternal fireworks, but this road was destined to be filled with blood, tears and struggle.