In a world ravaged by the apocalypse, where monstrous creatures roam and plants run rampant, humanity clings to survival within fortified walls. Ye Yunyi, a low-level worker within these walls, stumbles upon the 'Many Children, Many Blessings' system. By marrying and having children, he gains incredible rewards—powerful hunting skills, level-up cards, and even legendary weapons like the Pan Gu battleaxe! Though his goal is the survival of humanity, his path leads him down a road of many wives and many children. Years later, all the city lords across the world share a single surname...