Responses

The author most likely took inspiration from many religions and cultures. Most authors do that. I don't personally find anything offensive to any culture in this. Also I don't know if those words are in the original text or if they were the closet thing the translator could use. Idk. Even the whole "European" concept is not totally accurate. But like you said if you find it offensive don't read it.Do what you feel is best for you mate.
Author, even if u don't have any ideas, don't make a character and say he is a Muslim cuz he did things which a good Muslim would not do it !! It's obvious that she doesn't no the Islam well,I thought she was a good author but she really doesn't respect others, I'm Really annoyed and I'm dropping all her manhwas