Dark Blue Cage

The greenhouse effect caused global sea levels to skyrocket, and all land was swallowed up by seawater. Human civilization was forced to retreat to the boundless ocean, relying on cruise ships and aircraft carriers to survive. Only a corner of Mount Everest remained as pristine land. When the apocalypse comes, all sentient beings from all over the world show themselves in all kinds of ways. Some live leisurely, some pray devoutly, and some pursue privileges. Only students are always stuck in the sea of ​​problems and persevere in the apocalypse. Even if disasters are approaching, learning is still the unchanging theme. During the ten months of peaceful wandering, humans were accompanied by seafood all day long, strictly abiding by the ban on the protection of terrestrial organisms, and trying to maintain false peace in a broken world. But under the calm, there was an undercurrent of crisis. African ships caught nuclear-radiated mutated marine fish, which gave rise to a terrifying zombie virus. The United Nations troops vigorously encircled and blew up the ships. They thought that the source of the disaster would be eradicated, but they did not realize that the zombies had already spread quietly, quickly conquering the northern hemisphere, and the apocalyptic catastrophe completely broke out.