Living Armor: I Am a Natural Disaster

The genetic technology giant 'Ark Bio' claims to have developed a 'power awakening agent' that will allow humans to evolve. But on the day of the press conference, billions of people around the world mutated into bloodthirsty monsters. The world fell into chaos, but I accidentally picked up a broken mechanical armor among the ruins. It clung to my body like a living creature and whispered in my ear: "Want to live? Then... Devour them."