After struggling in the doomsday for three years, Qi Xia unexpectedly was reborn seven days before the disaster struck. He awakened the survival system, immediately resigned from his job, sold off his assets, hurried to hoard massive supplies, and transformed his hometown courtyard into a sturdy safe house. Doomsday black fog swept the world, civilization collapsed, exotic beasts ran rampant, and countless people fell victim to the disaster. Qi Xia managed to survive with advanced cognition, supply reserves, and solid strength, making companions along the way, exploring the mysterious lighthouse base, and breaking through one crisis after another. When the temporary stability ends, a more terrifying giant beast horde strikes, and a brand-new desperate challenge officially begins.