In her past life, Su Nianhe was betrayed—cast out by her husband Zhao Yuxuan and his family to die of thirst under the scorching apocalypse. Reborn with vengeance, she divorces him without hesitation, secretly acquires a mystical luck-granting koi, and uses its power to secure a fortified villa and stockpile supplies. But as the world collapses, the Zhao family’s greed backfires. After hoarding and reselling resources at outrageous prices, they’re left defenseless. When they discover Su Nianhe’s koi—a key to survival—they launch a brutal siege to steal it. Now, she must defend her sanctuary against those who once doomed her…