Unnatural has a LOT in common with Un/Sacred, even if there are differences. Where the first has two species that should not bang but really want to, here we have angels and devils. In Unnatural this causes tension and conflict, here it's the cause of amusement and gags. The artwork in both is ever so horny, which I admire about Andolfo, but that's about it. In the end, both works feel like meh-level web comic that is missing that something. It's not so horny as to actually inspire anyone or to actually carry the story as its sole focus, it's more playful and teasing, and the story (or stories) are not helping. In fact, it might make it even worse.
In Unnatural the over the top conspiracy / chosen one plot, while not actually that engaging, was interesting enough to make you want to see where it all leads to. Here, the story is told in strip-like one page gags with every now and then a few page long continous segments. Each page it's own joke with a punchline on the last frame, but the thing is, it's rarely funny. It's not even that I don't enjoy sexual humor, it can be cheeky and amusing, it's just that it's bad here.
The core premise is that there's an innocent but busty angel and a horny hellspawn that wants to bang her and he's willing to do his darnest to do it. This apparently means seven years of dating and hand holding and if they then get married, then they might do the deed. So it's a lot of things you'd suspect, the enticing angel says something which makes the horndog believe they are going to bang but hey, they're not - haha. There's some that simply lack the delivery of making it funny and then there's some... really, really weird ones. Like the one where they are having "phone sex", moaning, breathless, "Oh, this is so intimate, I've never done this with anyone before", "Oh, yeah baby", and... they are apparently taking a dump on the phone. I mean... that's just... what?
Then, when you realize that every story is about this same premise, "We're going to bang", "Oh no, how could I have misread the situation", it gets tiring. There are fragments of a longer narrative, but it never really goes anywhere..? And while this is Vol. 1, it actually seems to end really abruptly in a way that I don't think there's going to be more of this. There's also the weird thing on how the pages seem like they should be twice the size, the text and the artwork is painfully small which I don't really get.
Don't really recommend it.