In this seemingly ordinary world, the sunlight still fell unhurriedly into every corner. The city streets and alleys bustled with activity, and people went about their lives as usual. Office workers hurried between towering buildings, rushing from one meeting to the next or burying themselves in mountains of paperwork. Street vendors cheerfully hawked their wares, hoping to earn a little more for all their hard work. Children with backpacks walked to school, laughing and playing, their faces filled with innocent smiles. Everything seemed so harmonious and orderly, as though these peaceful days would go on forever. No one expected an apocalyptic catastrophe to strike. A colossal danger lurked in the shadows like a giant beast lying in wait, silently opening its bloody maw, ready to devour every beautiful thing in the world. Unaware of what was coming, people continued to rush through the petty concerns of daily life in their own little worlds.