In the third year of the apocalypse, Su Wan was pushed down from the roof of a building by her most trusted boyfriend Lu Zhe and her "best friend" Lin Weiwei, just to snatch the supplies she fought to protect. In the biting cold wind, she closed her eyes with endless hatred, and when she opened them again, she went back to a month before the apocalypse broke out. This time, she accidentally bound the storage space in her ancestral jade pendant and determined not to make the same mistake again. She restrained her sincerity, crazily hoarded supplies, and worked step by step to avoid the traps in her previous life. However, when she was preparing to survive alone, she met again the cold man Gu Yanchen, who only had a relationship with her in her previous life, but who was guarding a safe zone alone in the late apocalypse. Faced with Lu Zhe's hypocritical and gentle offensive and Lin Weiwei's hidden calculations, Su Wan fought back while she and Gu Yanchen went from testing each other to walking side by side. When the apocalypse of extreme cold, depletion of resources, and annihilation of humanity arrived as scheduled, she realized that the real apocalypse was never the coming of natural disasters, but the collapse of people's hearts; and the rebirth of this life was not only to survive, but also to hold on to the light called "trust" in despair.