Ah, well... [Now that he thinks about it, explaining ayakashi is a little tricky. He thinks over his answer carefully as he moves to sit down besides the younger boy, hand going to his chin.]

They can take a lot of different shapes, honestly... and they can be extremely colorful as well. Some have looked like giant monster cats, while I've heard that some don't look like anything that should be real.

But... I think the thing they all share in common is that, for us, they give off a feeling of... revulsion. Disgust. I guess it's because they're the opposite of us, so we feel naturally repelled by them.