It has been a few minutes since Allen's new passive skill has activated. He was now aware of what it does and how beneficial it is for him especially when he finds himself in tight situations.
The skill allows him to act calmly even when he was facing a man that was ways stronger than him, just like Chen. The skill hides his nervousness and makes him look like a much stronger person than he actually is, making the opponent feel intimidated.
Against humans, this skill isn't as effective. Since humans have rational way of thinking, they can also act like they're not scared of facing Allen. This was why Chen didn't hold back even when his men showed fear.
But when used on beasts, however, this skill was terrifying. Should Allen face a Grand grade beast or a high tier Rare grade, he can activate the skill and the opponent will lose its defenses, giving him a chance to attack and hunt them.