The World Is Minus 30 Degrees Celsius. I Am Selling My Body Temperature in the Last Days of My Life.

In a world of minus 30 degrees Celsius, heat is the most expensive sin. The pyramid tower city is built in layers. The upper layer has a constant temperature like spring, while the lower layer lingers in the cold wind. What connects life and death is the core of the snow beast's body - a crystal that only releases heat to carbon-based organisms. Lin Sheng's ring of life always lights up with "insufficient balance", and his sister's cough sounds like an ice pick piercing his eardrums. In order to replenish the medicine, he became a pioneer guard reserve and fought with snow beasts outside the tower, exchanging his life for entropy. But as the mission progresses, he discovers that the snow beasts are evolving, with fat layers as hard as steel, and even know how to use wind and snow to set traps; the temperature in the tower suddenly drops, the core recycling price plummets inexplicably, and the entropy value of the people at the bottom is silently plundered. What's even weirder is that the disappearance of the advance team, the mechanical wreckage in the old war zone, and the mysterious friction sound under the snow all point to a hidden truth: this frozen apocalypse may not be a natural punishment, but a man-made prison. When heat becomes the dividing line between classes, and when life becomes calculable entropy, how should he protect his sister and his remaining warmth in the wind, snow and conspiracy?