Isn't It a Utopia? Why Are They All Abnormal?

Green traveled through time and entered a world where humans and monsters coexist peacefully. Very good, there are no conspiracy theories, there is no darkness and cruelty, it is just peace between humans and monsters, and everyone coexists together. But what the hell are these anomalies? What does it mean that as long as you see his image for two seconds, you will be hunted down? What does it mean for anomalies to possess humans? What does it mean that I am also abnormal? And... "Only humans can be infected by anomalies, not those monsters..." "It's all those monsters' fault... You can't kill me!" The seriously injured man in front of him growled at Green. Half of his body had become abnormal, but Green remained indifferent. "Does this have anything to do with you killing people?" "I have no choice..." Bang! Gunshots rang out and everything fell silent. Your level has been improved "Hiss..." Green frowned as he watched his abnormal arm slowly return to its original appearance, and sighed. "Sorry buddy, I don't want to become an anomaly either."