Reborn in the Apocalypse: First, I'll Stockpile a Little More Supplies

[Apocalypse + reborn + stockpiling supplies + keeping a low profile + mutated beasts attack + no saintly do-gooder] The world changed, and temperatures plummeted. Humanity faced another round of natural selection. Reborn before the apocalypse, Zuo Yan discovered that the alternate space he had awakened in his previous life had come back with him, and began stockpiling supplies ahead of time. To survive the apocalypse, you have to guard against mutated beasts, but even more so against people...