I don't think he's creepy. He's really just not human. You can't expect a fish to act as mammal right.
I fear I agree
Of course, he's not human after all. That being said, he is supposed to be a little bit creepy and scary here in my opinion, Na-In still doesn't know about his true nature after all. At least that's the feeling I got from him in the novel before the reveal, and I think some facial expressions of Amon in the manwha highlights this.
omg exactlyyy hes so very not human and it makes him all the more uncanny and unpredictable i love it
Amon seriously is creepy, but I really love that about him at this point in the story. I know he has done a lot of terrible stuff in a misguided sense of wanting to help. Still, I'll be in a minority that slightly prefers Amon over Gwen. But yeah, it's just gonna get worse before it can finally be better again.