Invasion from Another World: the Abyss Comes from the Internet

Welcome to the year 2049. The biggest enemy of mankind is not aliens, but crashes caused by too slow Internet speeds! Yes, after a global network disaster called the "Great Collapse", mankind finally realized that "everything can become a spirit": your emoticons, chat records, and even unfinished papers can all turn into monsters called "Abyssal Beasts" and rush into reality. Humanity was forced to hide in high-tech fortress cities, relying on a super firewall called the "Great Wall" to survive. In the online world, 404 not found can be really fatal.