Any normal person would have been intimidated by Troy's question, the pressure would have affected and shaken their heart, although Troy only released a little bit of his pressure, it was still too much for a normal human being. However, Harry was anything but a normal person.
Harry pretended to be intimidated by taking a step back and making a terrified expression. Although he wasn't sure but from the way Troy was staring at him, it wasn't hard to get that he was trying to intimidate him.
Troy's mana core should at least be at the fifth stage, it would be strange and suspicious if he wasn't affected by it. He wasn't sure if his acting was good enough to deceive Troy but he hoped it did.
"I-I'm only here to re-take… the affinity test." Harry 'stuttered'. His words weren't lies as he was truly in the hall to take the affinity test.