[Two Male Leads]+ [Apocalypse]+ [Extreme Cold]+ [Natural Disasters]+ [Ensemble Cast]+ [One-to-One Romance]+ [Two Strong Leads] Medical prodigy Su Yu wakes during a super blizzard and discovers that the world has become an icebox at minus 80 degrees.
For a bite to eat, former classmates will swing a fire axe and smash your head in.
Su Yu only wants to look out for himself, until he meets a mysterious man: Xiao Han.
Xiao Han is ruthless in a fight and a man of few words, like a blade soaked in icy blood.
During their first fight side by side, he takes a lethal blow for Su Yu, his voice cold. “Don't hold me back.”
Su Yu thinks they're just allies using each other to survive in a chaotic world.
But when a swarm of giant insects engulfs their stronghold, Xiao Han stands firmly in front of him, letting his blood stain the frozen wasteland.
When the darkness in human nature erupts in full force, Su Yu guards his back, becoming his only weakness.
In the eternal night and despair, they stand back to back, becoming each other's only light and warmth.
They lead the survivors through insect swarms and betrayals to carve out a path of survival, building the last refuge, “Blackstone Fortress.”
He is the sharpest spear in the other's hand, and the other is his strongest shield.
When powerful forces from outside lay siege to the city, seeking to devour their last hope,
Xiao Han grips Su Yu with his bloodstained hand and declares before thousands:
“If you want to touch him, you'll have to step over my dead body first.”