Lucifer or Satan is just a disgraced Djinn from Djinn race. That's it.
Sometimes I think NERFing and denigrating G-d is what all arrogant atheists know and feeling cool about it. Thankfully all atheists and disbelievers will die someday due to old age and low rate of childbirth and self-destruction. The author probably never attempted to really understand that the seven errors of human nature are born from the soul naturally and there is no need of the external factors (external factors can amplify it a bit e.g. djinns) and righteous one will follow the 10 commandments (with sub-rulings) no matter what. What does the author mean by "G-d will punish if humans disobeyed" ? This is wrong thinking. G-d will not judge people until they die properly and completely and final judgement will on the Day of Calamity which will come at its appointed day. In the novel, what does the author mean by suppressing desires ?????? are you illiterate or deliberate bitch who talks shit without knowing anything just because you are not happy with restraint ?????? Harnessing desires and doing something useful is what restraint means. In other words, using energy for research and understanding the world or playing sports with physical energy. Imagine if everyone became deprave and consumerist, then the progress of technology and science will also become the Movie "Idiocracy". Watch this movie. Its good. The author and his MC and his supporters are like the unskilled incompetent talentless mannerless comfortable procrastinating Wife living in a stable house with a financially stable husband and still complaining
Don't become idiots thinking that 21st century is better than ancients or pre-WW1. What we consider as Sci-Fi or impossible today will be as common as a snicker in 22nd century. Imagine the world of Doraemon.
By the way "snickers will always sell no matter what era". by Warren Buffett.
edit: I don't belong to any religion. I just explained generic theology of OT and NT. I am a philosophy student and an apprentice wage-slave.