Reborn for Icy Revenge

Lynn is reborn before an extreme cold apocalypse. In her past life, her husband's family stole her lottery ticket and left her to die. This life, she claims the prize money, converts it into gold to activate a pocket dimension, and hoards supplies, transforming a store and RV into a Mobile Fortress. The extreme cold arrives, and her enemies come. She vows revenge, fighting mutated Frostbitten and the Corpse King, using her pocket dimension to build a warm home amidst the ruins.