In 2055, the asteroid "Pangu" passed by the earth. The huge gravitational force tore the oceans, triggering a magnitude 7 earthquake that swept across the country. A tsunami of 10,000 meters swallowed half of the land, and four billion people died around the world. Humanity has yet to catch its breath after the disaster. The earth is pulled out of its original orbit by gravity. A three-hundred-year-long ice age has officially arrived. Extreme cold and snowstorms have continued for the past 150 years. Li Lezi, an astrophysics graduate student at Shandong University's Weihai campus, had his father's top celestial theory stolen by his colleagues in his early years. He has been deeply involved in orbit calculations with regrets. On a snowy night in Weihai, he collapsed due to overdraft and met He Ran, an international political scientist. At an intercontinental academic conference, he calculated in advance an early warning of changes in the world, but failed to prevent the collapse of the school building and the tragic death of his old friend.
Humans around the world have gathered together to launch the Prometheus Heating Project in Hawaii, building a giant heating network to withstand the permanently freezing winter. However, extreme snow surges, lack of supplies, and the anti-humanity organization "Snow Clearing" have struck one after another. Qingxue believes that heating is just a lie to delay death, and he will not hesitate to destroy the global heating hub, use catastrophe to select a few human remaining embryos, and attempt to rewrite the direction of civilization.
The earth's core is cooling, its orbit is shifting, and endless snow has enveloped the world. Three hundred years of winter are just around the corner. Humanity has not given up on fire, using technology as a shield and flesh and blood as a salary, doing everything possible in the frozen desperate situation, just to wait for the belated warming of spring one hundred and fifty years later.
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