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In the end of the world, the fittest survive.
    Come back from rebirth, seize the opportunity, just want to survive in the hopeless end times.
    Three months before Mu Nan returned to the apocalypse, he sold all his savings to accumulate supplies, hoarded everything he could hoard like a hamster, and then huddled in his own house and lived a low-key life, carefully waiting for the apocalypse to come step by step…