Is she a angel
"she" might be, or something similar, after all in a world that can have an immortal demon such as Noah it would make sense for it to also have an immortal angel-like creature such as the Earl... who knows... interesting, no?
i think as the earl is a devil, she is a decent from an angel, or blessed by a god
Imagine if she's a fallen angel, that'd also explain her wish for wings, no?
Is she a angel