Agent Axe was shocked after finding out that Vale had noticed his disguise.
Of course, he didn't intend to insult the Immortal in front of him. That would be foolish for a Second-Class Arcanist like him. But the reason he had to use his Transformation Art was also for his own protection...
After all, the missions he accomplished in the Bureau weren't all lawful. Most of them were tasks that disregarded the government laws and there were times when they'd anger the Arcanist Faction's Secret Orders in order to seize or confiscate some Magic Artifacts.
"I'm sorry if I have to look like this, Sir Immortal. I just wanted to make sure that our trip will go smoothly. I have to ensure no one identifies me." Agent Axe explained.
"What? Are you a criminal?" Vale asked as he knitted his brows. He hadn't doubted that this man was a member of the Bureau since he saw his badge a while ago.