Peter walked towards the crowded place hoping for people to offend him. This was the first time he wanted others to offend him. The quest given by the tower was quite frustrating but there is nothing he could do.
After all, he needs EXP, and to get EXP, he must complete the quest. Killing a fellow human without a reason seems a bit too much for him. But, he wanted to change this mentality.
Killing a chicken is taking a life just like killing a human but it's just that our mind isn't developed enough for us to kill humans like chickens. While thinking of this, Peter turned around and returned to the gate of the city.
While thinking about the quests and his mentality, an idea came to his brain. Previously, he couldn't think of this because his mind wasn't ready for it. But now, he was ready for this. He knew he must complete the quest at any cost.