Its easy to get lost when aren't familiar with these:
1. Judeo-Christian Lucifer Morningstar: he was an angel that challenged God's knowledge — making him thrown out of heaven by ripping his wings out and falling tobthe mortal world.
2. Others pointed strongly that her apperance is like a Seraphim— also an angel with multiple eyes.
Why demons follow her because she has some kind of divine power (seraphim) or shes seen as the superior (lucifer).
I suggest that this is rather a dark mystery genre rather than completely grotesque one. If you ask me, Evangeleon and this manwha is very similar (same concept to that anime/ manga but I think this manwha inspired from it). But Evangeleon is more described as grotesque while this manwha is more leaning towards mystery at the same time fluff. Its has various genres that is can't coexist but it was able to, that is why it appeals to the audience. It has the uniqueness that hasn't shown up to usual manwhas.
I don’t typically like such grotesque manwhas, not a fan of dark stuff but I genuinely just have so much QUESTIONS why are the demons and everybody so utterly devoted or terrified of her ? Whole time she’s just an IDIOT (affectionately), I quite like her and her silly personality but I can’t for the life of me understand just what is going on here and why this goofy human is being seen as a monster and how she’s connected to the actual monsters, why are they so loyal to her bro I don’t understand!!!