After the black rain fell, the city was completely out of order within 72 hours. With clean water cut off and supplies in short supply, survival has become the most difficult thing. Delivery boy Lu Chen accidentally bound to the survival delivery system. As long as he completes high-risk deliveries again and again, he can unlock safe houses, storage points, transportation permissions and scarce supplies. While others were busy grabbing the last bite of food, he had already begun to establish a supply line; while others were trapped in a building, he was delivering supplies to the entire city step by step. As the natural disasters continue to escalate, the global network of survivors gradually emerges, and Lu Chen finally understands that this black rain is far from what it seems.
