TL;DR "A succubus rencarnation sexy-funtime isekai power fantasy." I'm not gonna stand here and tell you if you should burn this from your memory or if your gonna defend this as "not-hentai." Also, it is hentai because the first two scenes are were the story actively describes its characters in a sexual manner, In The First Two Scenes, WHILE ALL OF THEM ARE IN THE NUDE! IT'S!!! HENTAI!!!!! Sorry about that I just had to let off some steam. So, yea our "not-hentai" protagonist is a superpowered isekai succubus, who's overpowered and has all of the wishfufilment BS of the story drop on them. Look, it isn't offensive to people's sexuality from what I saw. And there's no grooming or rape so honestly it's not immoral to read, at least by the rate of the first 15 chapters. But if this isn't your thing then you shouldn't read, and if it is then it's not bad, but it isn't good either.
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LIKESuccubus shoulda been your first hint, secondly sure it's definitely sexualy charged, but (imo) it doesn't dictate the entirety of the story, we just get the view from a lust demons perspective & a newly born one to boot. I'm just saying to me it seems like you just saw the peak of the iceberg & was like "well thats disappointing". again I say 'to me'
And you are entitled to your opinion, "but (imo)" the story is unoriginal, boring, toothless for "not-hentai" and above all else, just not my thing.