When the virus tore apart civilization, the steel city was reduced to ruins, and order collapsed in blood and fire. In his previous life, Gu Han was betrayed to save someone during the zombie craze and died at the hands of his compatriots. Reborn three days before the apocalypse, he awakened with his memories and vowed to make up for his regrets and kill his enemies with his own hands. In this life, he was no longer merciful. He established a base, mastered core technology, subdued the strong, and established his own steel order in the purgatory where zombies and human nature intertwined. When the abyss descends and the alien species revives, he stands on the high wall, and everything he sees is the game of power and survival - this is the bloody journey of a dictator in the wasteland.