Doomsday Flood: Upgrading from Raft to Aircraft Carrier

A series of natural disasters sweeping the world! Human civilization collapsed, the world became a boundless country, and the survivors were less than one in ten thousand! Chen Fan luckily escaped from the drowned magical city. In a desperate situation, he bound to the "Super Raft System" and became the 73rd bound person on the planet. All the previous 72 people died! The novice gift pack is activated, and the broken raft can be upgraded to a second-level awning boat in an instant. The sealed cabin and alloy paddles are equipped, and the physical fitness is simultaneously strengthened! In order to save points to upgrade equipment, he gave up going directly to the shelter and bravely ventured into the flood restricted area on a raft: he dived into the school canteen to search for supplies, rescued the white fox in the canyon to trigger system rewards, and climbed to the 30th floor of the hotel to harvest drones! The raft is upgraded to an assault boat, with silent power blessing, one person and one fox depend on each other. The flood has not receded, the earth's crust is still changing, and unknown dangers lurk in the turbidity currents. Chen Fan holds the system in hand, hoards supplies, strengthens equipment, and fights natural disasters, vowing to find a way out in this hopeless country and protect the only remaining hope!