Don't let Isaac's usually gentle attitude toward the citizens fool you, nor the fact that he was unlike others who casually bullied those at the bottom of society.
Don't forget that he was a true Knight, and the Chief Knight of the Black Dragon territory at that. He had previously worked as an adventurer, his hands had been stained with human lives, and his sword didn't know how many human heads it had chopped off.
Therefore, even though Isaac was currently tightly covered up all over, once his face darkened, the murderous aura radiating from his body still scared the woman in front of him into taking a few steps back, almost falling onto the ground.
The woman's face visibly paled a few shades, and only then did she realize that the few people in front of her were not existences she could provoke. If she stayed and continued to pester them, the Knight in front of her would truly chop her head off.
