whats the difference between them and Grey? Is he "evil" too? or more or less harmless?!
Not sure but since he is just a half demon and half human he's not really that powerful plus he said himself that against a lamian he doesn't stand a chance. Lamian is a different kind of demon and I think that lamians and nightmares don't like each other but since we haven't seen enough of the story yet we can only guess.
I'm pretty sure lamians are gonna be "the bad guys" but they are all demons so they're pretty much all evil in the end. ╮(￣▽￣)╭ However it's gonna be, I'm excited for more (づ￣ ³￣)づ
Had to google what lamia is. Apparently, it's those evil snake ladies from the first chapter. (￣△￣)