[Hmmm. Slightly less familiar, there, but pretty interesting stuff nonetheless.]

Well, the smokeless fire is way off, although a fire seraph might relate. Humans with no resonance see nothing but our element when we're casting artes, so there is that.

And the majority of seraphim prefer to either help humans or leave them alone, but I can't deny that there are a few out to cause harm. In general, we have no interest in hurting humans - those who do are hellions, not seraphim. Otherwise it would be self-destructive to cause them any strife.