Why?

"I think compared to those two, even I look pretty normal, don't I?" Eiro asked with a light smile on his face, and Charles couldn't do anything but slowly nod his head as he stared at the Hobgoblin and the slime in humanoid-form laying on the ground in the corner of the room.

"Truthfully, now that I get the chance to have a better look at you, you do not look like what we know of normal Imps. Your face, I mean." Solomon pointed out with a slight laugh, and Eiro just turned toward him with a bit of a smirk, "Yeah, it definitely looks much more like that of a person. If I had a different skin-color, I may even pass as one, ignoring my horns and the fact I don't have hair."