Lu Yang was originally an ordinary high school student on Earth, living an ordinary life, but after a cold wave warning news, he accidentally traveled to a world 72 hours before the end of the world. He carries an upgradeable "intelligent shelter system" with him, which can unlock technology modules, expand space, and produce resources. Facing the extreme cold storm and social collapse that is about to sweep the world, he must race against time to recruit survivors, establish order, and resist predators. From being alone to sheltering thousands of people, from a simple bunker to a technological fortress, he will use his wisdom and humanity to ignite the fire of civilization in the frozen world and become the true "Lord of the Refuge" in the cold winter era!
