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It was supposed to be an ordinary day, and everyone was supposed to be living their own lives. But a mysterious voice sounded from the mind of every living being. At that moment The whole world has changed! Humans have mutated and turned into monsters that can infect and eat people. Most people who have not turned into monsters have gained magical abilities and can resist monsters. The male protagonist was not so lucky and turned into a monster, but a miracle happened and he gained consciousness. He wanted to solve the mystery and save the world, but the truth slowly emerged and he realized that things were not that simple. . . . . . . Well, the introduction is weak, please read the text! ! ! !