The story begins with a "blood epidemic" that swept across the country. The infected became violent and bloodthirsty, and order collapsed overnight. The heroine Shen Jingzhe, as an ordinary female jailer in the capital's sky prison, decisively sealed off the sky prison and transformed it into an indestructible doomsday fortress with her profound insight into human nature and the iron-blooded skills she had developed in prison at the moment of the end of the world. While managing the surviving jailers and the most vicious prisoners, she formed a delicate relationship of cooperation and checks and balances with the most mysterious felon in the prison, Xiao Jueming, the former regent who was deposed due to internal fighting in the palace.
The highlight is that the heroine has no golden fingers. All her abilities are derived from her career as a prison guard: excellent organizational management skills, calm to cold judgment, and a deep understanding of the dark side of human nature. She and the male protagonist are a truly powerful alliance. From the initial mutual testing and use, to the only trust and dependence in the end of the world, they finally join hands in this wasteland to gather the refugees and establish a new civilized order. The plot revolves around the three cores of "survival, infrastructure, and power strategy". It is densely packed with excitement and realistic emotions. It shows how a pair of mortal couples rely on wisdom and perseverance to move from a corner to the top of power in the face of natural and man-made disasters.
