There was a theory in the previous world that hadn't been proven till now. It was about the time when people get used to killing and think it's normal.
This may sound like something normal, people kill animals all the time but sometimes it's different. The same thing happened to Lucas, with how many things he had killed till now, he had become accustomed to the killing.
But it was not all, Lucas now had a habit of looking at things with the intention of killing aside from his group. He did the same thing with the people in front of him, the only problem was that he had started giving off a dangerous aura around him, especially his eyes which he did not know about.
Unlike the times when someone says 'I will kill you' and it just sounds like a joke. It was not the case this time as the people who looked at those eyes felt like they had gotten themselves in some kind of trouble.
