Well, I really enjoyed this as a supernatural slice of life light hearted comedy. Nothing is ever going to be serious for more than at most a few pages or half a chapter, maybe an entire chapter or two at the end. I got a lot of happy smiles, but very few outright laughs from this manga. I also want people giving a low rating because of the art or saying that they didn't read it because of the art to screw off and go read whatever fanservice manga they like, I do get that not liking the art is a reason to lower the grade with 1 point of 10, but if you don't like the art and didn't read it properly, don't comment at all. As if good art ever meant the story was good. It can make it much more enjoyable indeed, but this isn't a video game, the art doesn't really matter as long as it's not stick figures or completely undecipherable. This one was actually acceptable in art(though it's unusual and seems like something of a mix of old and new art), though the last few chapters had lower quality with things looking way too flat.
HOWEVER... you might as well skip over the entire last two-three chapters and just read the very last few pages at the ending for some closure. Those chapters sucked way too much. The author tried to force in some cheap drama and whatever and everything moved at light speed and was solved just as fast as it began. The mc acted like a total wuss and retard, being all depressed and edgy as fck against every demon he knew, trying to drive them away because some DEMONIC OVERLORD showed up all of a sudden to warn him(not suspicious at all, right?) and spout lies about how milky was manipulating him and planning to kill him or something(yeah, he would totally care, right?). So, he just drops everything and acts like a drama queen edgelord, crashing a plate, being extremely rude and generally hostile against the ones he seemed to love before and making them cry before shutting himself in a dark room somewhere. However, this is solved quickly in the next chapter where we have them reunite with a love confession and everything is water under the bridge and the evil overlord guy just said "fck it" and let him have the chick for no reason whatsoever, seemingly just because they love each other, or maybe he was thinking something like "Heelll noo, I ain't having any of that used gods mofo, that's naasty" because they kissed and he just got turned off and lost interest.
I mean, come on... This all happened in pretty much 2 chapters. Oh, let's not forget that when he was all edgy, the obligatory "face slap of 'wake the fck up'" was used in order to bring him to his senses after he pretty much believed a shady as fck complete stranger completely and went into deep depression because of a few sentences he said(the person who slapped him even said exactly that, commenting on how pathetic he is for believing a total, random stranger over his own experiences and feelings, it's as if the author wanted us to dislike the mc at the end). Even if your feelings are manipulated, who the fck cares if you're happy? Holy shit man, I understand if you get some seeds of doubt planted in your mind after talking with that little dipshit overlord, but is it enough to completely distrust the ones you love and be hostile like a cornered animal? Jeez.
The art also dropped the last few chapters, so you get the feeling that the author just said "fck it all" and threw something random together with force, perhaps the manga got axed or he just wanted to start something new and instead of giving a proper ending with proper art, story and closure, he went with some half-assed bullshit that made you dislike the mc and become generally disappointed. I mean, not to mention the edgy teenager and the overlord part(it was actually almost amusing to see everything go so fast, like, oh no, new super villain, distrust, hostility, people running away, getting snapped out of it, the female lead getting turned into a doll with a broken mind and then the mc running to rescue and confess to the damsel in distress and snap her out of it, the super villain giving up and then the ending happened in just 2 or so chapters, holy... That's like at least one or two dozen chapters normally), but it just ended like "oh, our daily lives will continue from now on" and then on to some drivel about relationships and how some are married, some are lovers, and then there's relationships like theirs with master and servant. Oh god, what the hell.
At least end it with something like "our adventures continued and our relationship slowly changed from master and servant to girlfriend and boyfriend to husband and wife" and then show a wedding picture or something, however forced it is, it can't get any worse than what it was before. They're clearly already madly in love, the confession is also out of the way, why keep going with that forced status relationship, at least say that they were both master and servant as well as husband and wife or lovers, it'd give me way more closure on this. It's been a while since I last saw a manga where the mangaka clearly just abandoned it all and threw something together just for the heck of it, so sad.
All in all, it was a good way to spend some time, definitely worth reading if you like light-hearted, slow and fluffy comedies with nothing going for it in terms of plot. I recommend it, even if the ending was both rushed and sucked generally.