Feng Jun casually killed people, which was influenced somewhat by Pan Renjie and Shangguan Yunjin—they didn't regard mortals as human beings.
But it must be pointed out that the incident outside Xiyin City also had a profound impact on him.
These local bullies who relied on their territorial advantages to oppress outsiders were truly despicable.
If they were merely extorting some money, that would have been tolerable. The problem was, they would test you step by step. Once they confirmed you couldn't effectively protect your possession, they would eventually drain you dry—even taking your life.
Back then, outside Xiyin City, Feng Jun's strength was still quite weak and under many constraints, so he could only leave resentfully under Lang Zhen's protection.
Now that he had the ability and encountered such people again, to be honest, he felt like killing on a whim.